Concave and Convex Mirrors

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Concave and Convex Mirrors are Spherical Mirrors. These Curved Mirrors are discussed in the video. Difference between Concave and Convex Mirrors is discussed and compared with a Plane Mirror. Uses of Concave and Convex Mirrors are shown. Which type of mirrors are you using in your everyday life?
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2 июл 2024

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Комментарии : 8 тыс.

@ManochaAcademy 3 месяца назад

For LIVE Classes, Concept Videos, Quizzes, Mock Tests & Revision Notes please see our Website/App 👉Our Website: bit.ly/2KBC0l1 👉Android App: bit.ly/3k48zdK

@krishnaprasath7338 3 года назад

Hatsoff to you sir. I learner in byjus,vedantu,aakash and even unacedemy. But your physics is the best. God bless you.

@ganeshbafana1718 3 года назад

Hey where do u leave😄😊

@pcmumar6475 2 года назад

Hat yaar chikna acha nhi padhata h

@pcmumar6475 2 года назад

Gadha h

@bhatanmol5483 2 года назад

@@pcmumar6475 ye bekar nhi padate tera dimag free fire khelete khelte gobar br gya h

@pcmumar6475 2 года назад

😏😏kuch samajh me aata h iski video se bade aae free fire wale bhat

@subikshaabm Год назад

Q1 (a) convex (b) concave (c) concave Q2 given, f=10cm R = 2f = 2 x 10 = 20cm Radius R = 20 cm. Q3 Without touching the mirror, we still can identify the type of that mirror. We can identify them just by merely standing in front of it. If the image is of same height and upright it might be a plane mirror. If the image is inverted and when moved closer the image is highly magnified, it is a concave mirror. If the image formed is diminished, it is a convex mirror. We can also identify them by looking at the mirror whether it is flat, bulged or curved inwards. I thank Manocha academy to teach topics in the simplest way and making study more fun to learn ! I thank you so much ..

@AmanKhan-kg5iq 6 месяцев назад

Q1 A. Convex B. Concave C. Convex Q2 Radius of curvature is 20cm because the focal length is equal to half of the radius of curvature Q3 In the plane mirror the size of the image on mirror is equal to size of the object In the concave mirror the size of the image is greater than size of the image In the convex mirror the the size of the image is smaller than the size of the object So we find the type of mirror without touching him

@indranibalasubramani9392 2 года назад

Q.1 a)convex mirror b)plane mirror c)concave mirror Q.2 Given: f-10cm f=R/2 10=R/2 10×2=R R=20cm Q.3 plane mirror: plane mirror has a flat surface and parallel beam of light will reflect in parallel. Concave mirror: Concave mirror is a spherical surface and reflection will be converge. Convex mirror: Convex mirror is also a spherical surface the reflection will be diverge.

@vgtech692 5 месяцев назад

But the answer b is concave because it is diverging ray ex of put a paper and parallely distance tilted downward when the sun rays meet the magnifying glass the rays meet at one point so the paper burns

@sudhannsh 3 года назад

Better than online classes 😉

@arnabmodak1443 3 года назад

Yes it is right . It is beter then online classes

@ManochaAcademy 3 года назад

Thanks for liking

@erusumandarakeshrakesh865 3 года назад

Haa

@ajgamerz2921 3 года назад

Yes that better than online classes

@DineshParmar-nf5ey 2 года назад

Ya correct

@priyansisamarage9714 2 года назад

A.convex B..concave C.concave 2.20cm 3.by looking at shape

@anishp1387 8 месяцев назад

Answers below- 1) a)Convex(because the image formed in the shop security mirror is diminished) b)Concave (because the image formed in the solar furnace is magnified) c) Concave (because the image formed in the mirror by dentists is magnified) 2)We know that focul=radius/2. So if focal length is 10 cm the radius of curvature will be focal x 2. So 10 x2 will be 20 cm.And that’s the answer. 3)Plane mirror is a flat surface which reflects light .Also the body will be of the same height and erect. Concave mirror is curved surface which reflects light.The image will be magnified and inverted. Convex mirror is a surface which reflects light and is curved outwards.The image is diminished. Hope this helps. P.S- Would love to have a like

@Bts_armygirl_khushi 6 месяцев назад

Excellent thaku I was serching for answers

@AAS_46 2 года назад

Legends are here 1 day before exam 🤣😅😅😅😅😅

@habilsworld3375 Год назад

Correct

@deathgamers4157 Год назад

Nope

@rjvideos6509 Год назад

Good

@SUBU197 Год назад

Yes

@ankitgmr5658 Год назад

Yes tomorrow is my exam

@aradhya5624 3 года назад

Q1 (A) convex mirror (B) concave (C) concave Q2)Focal lengths is 10 cm then f=r/2 r=f*2 => r=10*2 => r=20cm Q3) by seeing the image formed in the different mirrors can distinguish the types of mirror without touching the surface of the mirrors Thank you 😌

@avinashmutha5198 3 года назад

@haidecristobal9834 3 года назад

@Fitandhittuber 3 года назад

Good 👍

@MohdRehan-wo7ch 3 года назад

Intelligent 🤭😔

@bhumikochar5358 3 года назад

Wow!! Very intelligent; right answers👍👌✔

@sombiryadav3448 2 года назад

1 a) convex mirror b) concave mirror c) concave mirror 2 20 cm 3 plane mirror will show same height image. concave mirror will show inverted Image and when brought closer will be magnified. convex mirror will show the objects small.

@mehktaneja 5 месяцев назад

never understood mirrors this easily. Thank you for sharing sir!

@ManochaAcademy 5 месяцев назад

You are most welcome

@gitanjalichaubey4979 3 года назад

He explains better than school teachers and has a thinking of student struggles so he talks as if he is our friend .

@ManochaAcademy 3 года назад

Glad to hear that

@kagujeritah1921 3 года назад

If u say so but as to me no one will replace my physical trs

@jamielim3889 3 года назад

Agree

@manvendrasinghchauhan17 3 года назад

Yes

@anumagupta449 3 года назад

Agree

@manishagiree 2 года назад

Q1 a) Convex mirror b) Convave mirror c) Concave mirror (?) Q2 ) f = r/2 therefore r = f×2 and the r= 10× 2 = 20 cm. Q3) A plane mirror is a flat surface which reflects the image clearly. A Concave mirror is an inverted image of original object and also it is a magnified image. A Convex mirror is a mirror in which basically we can se many things fitted in the image obtained or objects get divereged into the mirror.. thanks alott for such a good explaination it made the chapter so easy to understand...👍👍

@arkapravapal3619 11 месяцев назад

1)(a) convex mirror (b) plane mirror (c) concave mirror 2)Focal length=r/2 10=r/2 10×2=r r=20 3)Plane mirror: The surface is flat, the beam of light is parallel and forms upright image of same size Concave mirror: The surface is curved inwards, the beams of light converge at a point and forms inverted image or magnified and upright image Convex mirror: The surface is curved outwards, the beams of light divergence from a point and forms upright and diminished image

@jetalkharadi3-arollno-202 3 месяца назад

Anybody watching this video in 2024

@loly6693 3 месяца назад

😂😂😂me

@aniruddhasahu5898 3 месяца назад

@iqratrust5823 3 месяца назад

Me❤😂

@AdeolaAdenuga-xl6cq 2 месяца назад

Yes lol

@omikacooray5333 2 месяца назад

Me 😂 . Watching this for my O/L s

@dharmathilakawalakuluarach2136 3 года назад

1 ) a ) Convex mirrors are used in shop security mirrors. b) Concave mirrors are used in solar furnace c) A concave mirror is used by dentists to examine teeth. 2) The radius of curvature is exactly twice the focal length so the answer is 20cm . 3) If you look into a plane mirror, you can find that the size of the image is same as that of the object. If you look into a concave mirror, you can see an enlarged image when placed close and can see an inverted image when kept away. A convex mirror always forms a small and erect image.

@dharmathilakawalakuluarach2136 3 года назад

These are the answers for the top 3 questions sir ! THANK YOU I AM A KID WHO IS DOING OLYMPIAD SO I HAVE TO LEARN THESE LESSONS !! thank you so much sir ... your vidoes are great sir ! DO YOU HAVE ANY QUIZES FROM THIS LESSON SIR ??😀😀

@akashbg9073 3 года назад

@padminijadeja3770 3 года назад

keep it up!!!

@zahirzahir9414 3 года назад

EVERY STUDENT WANTS PHYSICS SIR LIKE YOU😀😀

@ManochaAcademy 3 года назад

Wow Thanks

@user-vs2ll9rj4l 11 месяцев назад

1a)convex b)plane c)concave 2 20cm 3 plane mirrors form an upright image of same size convex mirrors form an upright yet diminished image concave mirrors form an inverted image from afar and a magnified and upright image from nearby

@Allnne-jf3vw Год назад

Q1-a)convex b)concave c)concave Q2- 20cm Q3-By observing the reflection of each mirror Great lesson I enjoyed while also learning

@dhanalakshmipj2097 3 года назад

Lol you have helped me a lot a day before exam memorising the concept....Thank you sir!!!

@ManochaAcademy 3 года назад

Glad to hear that

@inzamam___4032 3 года назад

@@ManochaAcademy Really?

@moi11111 3 года назад

Same here....I have my exam tomorrow

@chiragbishnoi718 3 года назад

Sir thank you. You didnt cut the spherical ball. It was a cadboury gems box which you opened

@blapixel274 3 года назад

Dude same here 😏

@Prxdfigxterx 3 года назад

you explain everything in a easy manner and also in a practical ways sit god may bless you with 100 million subs on youtube

@firststepplayschool1474 3 года назад

Yes I am satisfied with you

@tidubhai9563 3 года назад

Op thought

@maansingh5071 3 года назад

Achha mazak hai

@yes._.tiktok1378 3 года назад

Yup your indian

@karupsvivek992 3 года назад

I reckon with you

@jamal_106 Год назад

why does he stare into my soul like that 💀 4:55

@jamal_106 Год назад

@@Idkmyname288 frfr

@OlanrewajuAbduljeleel-ej7yu Год назад

Q1 a. Convex mirror is used in shop security mirror so as to give a wide view b. Plane mirror is used in solar furnace c. Concave mirror is used be dentist to examine teeth because of its magnification Q2 If f = 10cm, R = f×2 = 10 × 2 = 20cm Q3. Plane mirror - The image will be the same as the object - the image will be at the same distance as the object - the image will be erect and virtual Concave mirror - The image will be inverted at first but when move closer, it will be magnified Convex mirror - The image will be smaller than the object - it gives a wide view of image

@sajidashameer144 2 года назад

1(a) convex mirror (b) concave mirror (c) concave mirrir 2 ) 20cm 3 ) plane mirror : has a flat surface and same hight concave mirror : it is the only mirror wich are inverted or magnified convex mirror : smaller and always upright and diminished sir please tell me if this is correct or wrong

@beinggood7384 2 года назад

All correct 💯💯💯

@parikshitrocks440 2 года назад

op bolte

@nadiajamshad1100 2 года назад

Answers: (Qs 1) (a) convex (b) concave (c) concave (Qs 2) f = R/2 f × 2 =R R= 10 × 2 R= 20 cm (Qs 3) We can distinguish b/w them by standing in front of the mirrors or placing an object in front of then so that we distinguish b/w them by the images formed on the mirrors. Btw the lesson was really good it helped a lot .. Thankyou sir💜👍🏻💯

@mahamayibhat9087 Год назад

1 a. Convex mirror b. Concave mirror c. Concave mirror 2. f=r/2 10=r/2 10×2=r r=20 3. There are two ways you can distinguish between plane, Concave and convex mirrors- •plane mirror - the reflective surface is flat concave mirror - the reflective surface is curved inwards convex mirror- the reflective surface is curved outwards OR •plane mirror- when an object is held in front of it, the image appears to be the same size concave mirror- when an object is held in front of it, the image appears to be inverted. If the object is held very close to the surface of the mirror, the image appears to be magnified. convex mirror - if an object is held in front of it, the image appears to be diminished.

@InfiniteTech2017 2 года назад

1. 1). CONVEX 2). CONCAVE 3). CONCAVE 2. ) focal length = radius/2 10 = r/2 r = 2×10 r = 20 Therefore The Radius is 20 3. ) We can distinguish them by the way they look or the way they give out the image

@shrithirevanna4759 3 года назад

Super video sir you explain is very good it is better than our school teachers

@klyn7863 2 года назад

No.1 youtube channel for education with practical examples..thank you so much sir🙏🏻

@ManochaAcademy 2 года назад

It's my pleasure

@RajeshKumar-xo8qj 9 месяцев назад

1. A. Convex B. Concave C. Concave 2. R=2f So, R = 2*10=20cm 3. Plane: if the image formed is of the same size of the object. Concave : if the image formed is magnified or image of the object is enlarged. Convex : if the size of the image is less than the object.

@user-lh1cb1md4v 5 месяцев назад

Excellent explanation sir I see many videos before but i didn't understand when I saw your video i understand clearly🎉

@anur07 2 года назад

Preparing for competitive exams but this portion of physics was always too difficult for me But you made it very easy, now I can understand the concept Thanks a lot sir❤️

@axmedmuusefaarax484 4 года назад

I am from somalia I watched this video me and my classmates when prepared final exam 2019-2020 -keep going teacher

@ManochaAcademy 4 года назад

Keep watching

@RakeshKumar-en9vt 3 года назад

Where is Somalia, guy reply me

@HarryPotter-ge9yg 3 года назад

Mana Telugu vallu anta manchi chustunnaru

@saadaqabdirahmansalaad2640 3 года назад

@@RakeshKumar-en9vt somalia is east africa are you known?

@kunjumuthutir 3 года назад

@@saadaqabdirahmansalaad2640 thank you i needed that answer for my home work

@NPmathstechinicalcluster 7 месяцев назад

Ans-। Convex mirror Ans-2. 20 Ans-3. By seeing our reflection in Mirrors.

@user-ib2of8jh7q 5 месяцев назад

a ) shop security mirror is a convex mirror as it provide greater view of the surroundings. b) for a solar furnace a concave mirror is used as it is a converging lens and converges the sun's rays to a particular point. A lot of heat is provided to that particular point where the food is cooked. c) dentists use a concave mirror as it is a converging mirror and creates a magnified image thus helping the dentist to properly see the teeth.

@TheATIXGO 2 года назад

Tomorrow is my physics exam, and when this topic was taught in online classes I muted it and played game. But sir, you helped me a lot, Thankyou Sir.

@ManochaAcademy 2 года назад

Most welcome

@TheATIXGO 2 года назад

@surendrarajput9609 2 года назад

Abe dhyan dena chahiye tha na sala game ki dukan

@playmania1277 2 года назад

@@surendrarajput9609 🤣

@ehtishamulhaq371 4 года назад

Sir i never comment on any type of video on youtube.. But your way of teaching is mind blowing.. I love your way of teaching.. And gain knowledge.. 💕💕

@ManochaAcademy 4 года назад

It's my pleasure

@EducationPlusVishal Год назад

Q1- (a). Convex mirror (b). Concave mirror (c). Concave mirrors Q2- Focal length= half radius of curvature of mirror. So, radius of curvature is 20cm. Q3- Plane- Same size as in real world Concave- magnified close Convex- Covers large area, wide image

@cantbreatheproperly Год назад

Q1. (a) convex mirror (b) concave mirror (c) concave mirror Q2. If focal length is 10 cm. f=R/2, then R=f×2 R=10×2 R=20cm Q3. A plane mirror reflects the same height, image. A concave mirror reflections converge forming an inverted image when the object is afar and enlarged, upright if object is near. A convex mirror reflections diverge forming a diminished or reduced image of the object.

@Rayleigh593 Год назад

Solar furnanc isn't plane mirror

@Rayleigh593 Год назад

It's gonna be concave as it converge all the light rays to specific point called the focus which can later be converted into solar energy

@cantbreatheproperly Год назад

ok, tnx for informing me

@salmaahmed910 3 года назад

Dude this is the best thing I've watched and actually understood from 😭 Thank you so much 😭💘

@ManochaAcademy 3 года назад

Most welcome

@mohamedmamdouh3172 2 года назад

@pranavkrizz1553 2 года назад

@@mohamedmamdouh3172 exams tomorrow?

@PRADEEPKUMAR-ow1qo 3 года назад

I have no words to explain your teaching Style 👌

@ManochaAcademy 3 года назад

Glad to hear that

@satyapalyadav403 3 года назад

@alirana8841 Год назад

The best teacher I found on youtube...

@aisha0606 5 месяцев назад

This topic was very confusing I had watched hundreds of videos but never understood the topic now that I have watched your video all my doubts are cleared. Thank you!

@shreyanshdutta2936 2 года назад

The Top Three Questions: 1.a) Convex Mirror 1.b) 1.c) Concave Mirror 2) The radius of curvature will be the double of the focal length i.e. 10x2 cm = 20 cm. 3) We can distinguish between a plane mirror, concave mirror and convex mirror by looking into each of them. The plane mirror will give us an image of the same height, while the concave mirror will give an inverted image and when looked closer, it will become straight and magnified. In the convex mirror, the image will be shorter and diminished, no matter the distance between the object and the mirror. (Sir, I have a doubt in the 1st question, number 'b' as I don't know the type of mirror used in a solar furnace and its purpose. This is my one and only doubt. Other than this, I have no doubt or problems and my concept is clear.) Thanks, Shreyansh Dutta.

@moinuonline 2 года назад

1 b) concave mirror (കോൺ കേവ് )

@shreyanshdutta2936 2 года назад

@@moinuonline can you feel me why a concave mirror is used in a solar

@priyankatripathi728 4 года назад

Sir Q1. a) convex mirror b) concave mirror c) concave mirror Q2)20cm Q3)Plane mirror will give image of same shape and height. Convex mirror will give diminished and upright image. Concave mirror will give inverted and magnified image.

@ManochaAcademy 4 года назад

Super! All your answers are correct :) Also try the Quiz for this video on my Website. Quiz button is below the video: www.manochaacademy.com/physics/light/l/concave-and-convex-mirrors

@user-yl1iq8ny4s 10 месяцев назад

1.Convex.2,plane.3.concave 2.if FP(f)=10 cm FP(r)×2=20cm 3.Plane mirror has a flat surface.Concave mirror has an inner curved surface and convex has an outer curved surface. Thank you very much for letting me know this topic

@aarthivanimisetty5441 10 месяцев назад

ur 1st main 2nd is is wrong solar furnace is concave but still kudos for gving it a shot 👏👏

@goldy_on_pc930 25 дней назад

Things got serious when bro pulled out the gems ball

@aniruddhadutta4636 2 года назад

He explains better than school teachers and has thought of student struggles so he talks as if he is our friend and explains so good. Thanks sir.

@zeeyansheikh2185 4 года назад

I searched out for many videos of lenses but I now think that why didn't I watched your video first? awesome video 👏👏👏

@hrudayarani6815 4 года назад

It's true

@Hopepriyanka 2 года назад

1 question 1. Convex mirror 2. Concave mirror 3. Concave mirror 2 question 1.20 3 question 1. Plane mirror has flat image 2. concave mirror seemed like a cave and inverted image 3. convex mirror gives short image Thankyou for your great explanation

@Freddyson3820 2 года назад

🤣🤣🤣🤣🤣sad life

@sumathimandem161 2 года назад

Iam not answered to see him but to my clarity I had a happy life bro 😂😂😂

@Allinone-si3tf Год назад

*Note* : *👉In Concave mirror image is inverted, diminished in two cases only* 1. *Object at infinity distance* 2. *object at beyond center of curvature* 👉 *If object is placed at center of curvature then image is inverted and "Same size as the object size"* *👉If object is placed between C & F and Object is at F then the image is inverted, enlarged or magnified*

@sfurtisinha4762 2 года назад

Top 3 questions : 1 - A) Convex Mirror B) Concave Mirror C) Concave Mirror 2 - Since F = R/2, R = F x 2 = 10 x 2 = 20 3 - A plain mirror will show a upright and normal image, a concave mirror will show an inverted or if you go close a magnified image, a convex mirror will show a small but upright image.

@anushkabartwal9462 2 года назад

Your answers are right because it's match with me 😁🤣

@dady_player Год назад

@@anushkabartwal9462 and your answers are right because i want😗.

@pawankumarsingh4715 3 года назад

6:06 it's a Cadbury's gems ball 😅😂 amazing prop for demonstration!!!!!

@arunkumarm9718 3 года назад

sir did not even cut it , it is the opening part of the gems ball

@jiyaaaaaaaaaa10 3 года назад

Yes, right 😊

@abhisrecitation949 3 года назад

Lol

@MamtaDevi-ow9mk 3 года назад

True🤭🤭

@ipsitaparida4471 3 года назад

@@arunkumarm9718 obviously omg

@zeddantonino2012 Год назад

My Answers: 1. a)Convex Mirror b) Concave mirror c) Concave mirror 2.F=R/2 so the if the focus is 10 cm, therefore the radius of curvature is 20cm 3. I will know the difference of each type of mirrors by just looking on how my image is formed

@respectthosewhodeserveit5192 2 года назад

1.a) convex mirror b) concave mirror c) concave mirror 2. 20 cm 3. Plane mirror - Image is erect and same size Concave mirror - Image is inverted from a distance, but will become magnified when we move closer Convex mirror - Image is upright but diminished

@pamidiram2437 2 года назад

a) convex: as it cover large area b)concave:rays are converged to focal point C)concave : to focus on exact area 2: F=R/2 10=R/2 R=20 3: Plane mirror:forms actual image Concave: image is inverse and magnified Convex: image is diminished and smaller size Thank u sir.....👏

@karthikvijayakumaar.k6981 2 года назад

2: R=20

@chandrakantthube9882 3 года назад

All concept cleared....every school want a teacher like u....

@aryanmanjrekar Год назад

thanks for teaching me I got 94/100 in my physics exam

@SYED_IBRAHIM_HUSSAINI Год назад

How many members didn't get shiny spoon 😁😁

@BipBopBlehh Год назад

I got up to get a spoon, but none were shiny :')

@sahanasahana1196 2 года назад

Sir my answers are 1) a) convex mirror b) concave mirror c) concave mirror 2) If f= R/2 then R = f×2 = 10× 2 = 20 cm 3) Plane mirror = parallel rays remain parallel Convex = diverging mirror Concave = converging mirror

@AnoopKumar-yn4bb 2 года назад

Yes sahana you are right 👍💯

@gayathrivr 4 года назад

Brilliant way of teaching

@ManochaAcademy 4 года назад

Thanks

@davidarmitage22 3 года назад

@@ManochaAcademy welcome

@BaljinderKaur-gp9sh 3 года назад

Tell me all the questions

@YuvrajSingh-rv1pl 3 года назад

Very nice yes you say right brilliant way of teaching

@khadijamujtaba2072 2 года назад

1a convex mirror b plane mirror c concave mirror 2 focal= 10, radius= 2f r = 2*10=20. 3 plane mirror have plane surface Concave mirror is spherical and inward Convex mirror is spherical and outward

@dennisfelicita122 2 года назад

Corrrect

@svshiva1844 29 дней назад

Excellent, i have read at many places, but never i got the concept as clear as it is here.. great.. Please keep on going and make the concepts simple.. it would help lot of learners

@danielzimik8562 3 года назад

Who is here because of online class ?

@padmasreemalyala5562 3 года назад

We are Twins , because black images

@shiraven5649 3 года назад

@minalsangoi7906 3 года назад

@djkicomedy6313 3 года назад

Mee!

@_RZ_GAMING_ 3 года назад

@nilushaperera6866 4 года назад

Q1. a. convex mirror b. concave mirror c. concave mirror Q2. 20cm Q3. Plane mirror - Flat surface concave mirror - curved inwards convex mirror - curved outwards

@BlessingObasiAda 5 месяцев назад

1A. Convex B. concave C. Concave 2. 20cm

@ashu1500 Год назад

1.ans Convex , concave ,concave 2.ans 2ocm 3.ansby observing our images in mirror

@abdullahnafees4133 3 года назад

Wow 😮 man what a class on mirror !! Thank you 🙏 Sir The concept is totally clear to me now ❤️

@ManochaAcademy 3 года назад

Glad to hear that

@bhavanarathod298 3 года назад

@@ManochaAcademy realy

@aamffgaming9407 3 года назад

@@bhavanarathod298 no

@harshith9943 2 года назад

😒😒

@parachiswathi1009 3 года назад

Your explanation is very clear and perfect . we understood very clear. Thank you sir

@ManochaAcademy 3 года назад

You are most welcome

@aakibgazi3992 Год назад

Sir, thanks for this kind of explanation. Ans- 1. a- convex, b- concave, c- concave 2. Radious of curvature- 20 cm 3. We can distinguish by observing our image in the mirror.

@hulejilucky 2 года назад

1. (a).Convex mirror (b). Plane mirror (c). Concave mirror 2. Radius=20cm 3. Plane mirror has a flat surface Concave mirror is inverted Convex mirror is upright

@kiddies_world8757 2 года назад

How do you sum up and have 20cm???

@rahmaahmed9066 2 года назад

@@kiddies_world8757 Given F=10cm R=? We know the focal length is equal the radius of curvature divide by two F=R/2 Multiply the number of focal length into two 10x2= 20cm that’s all 😊

@vijayakumars5727 5 лет назад

1.concave mirror 2.20cm 3.flat mirror gives same height, Concave mirror gives magnified image when very closely and inverted image from distance, Convex mirror gives diminished image

@anusethi1518 4 года назад

1. Convex Mirror , b. Convex Mirror , C. Concave Mirror 2. F= 2R = 10×2 =20 3. In Plane mirror rays will remain parallel . In convex mirror rays diverges . In concave mirror rays converges. Thanks sir it helps alot 👍

@user-yh1hi7we1t Месяц назад

1a=convex mirror b, c=concave mirror 2=20cm 3=we can distinguish by bringing our face very close to the mirrors. If the image of our face is of the same size of the face than it is a plane mirror, if the image is smaller than our face , then it is a convex mirror

@refreshyourmind3239 Год назад

Thanks sir you are a very great teacher My science exam is just 9 days away To be honest I spent hours on this chapter on Sunday (it just ruined my Sunday) I wish that I have been watched this video before....

@abhilashachauhan5541 2 года назад

1-a convex. b concave. c concave. 2- Focal length - Radius/2 So, Radius - focal length .2 10 multiply by 2 So 20 cm. 3- plane mirror is flat. Concave mirror is curved inwards and has shiny surface. Convex mirror is curved outwards.

@Abhishek-er5mr 3 года назад

U act like a robot. I like it. Funny

@loiseshiimi3204 Год назад

1.a) convex mirror b) plane mirror c) concave 2. 10×2= 20r 3.• On a plane mirror the image is the same height as the object, the image is also vertual, upright and lateraly inverted • Convex mirror the image is diminished and upright • Concave mirror the image is magnified and upright or inverted

@joshitha9989 Год назад

b) concave as it is a converging mirror

@user-gl4zq5xf6w 3 месяца назад

Very nice sir and congratulations 🔥

@DTXA841 3 года назад

Q-1 a) convex mirror as it gives a wide field of view.... b) concave mirror as it is a converging mirror and it will bring all lights concentrated at a point.. c) concave mirror as it gives magnified image of teeth. Q-2 R=2f R=2(10)=20 cm Q-3..... We can see our image in those mirror and can observe the following points : in plane mirror our image will be as same size as we are...... In concave mirror our image will be inverted or magnified..... In convex mirror our image will be diminished

@Wearethelearners 2 года назад

Answer of 1=A. Convex B. Convex C. Concave 2. The radius 20. 3. Plane mirror have flat surface Concave mirror have magnified images Convex mirrors have short images

@ZorikaSakamishi Месяц назад

First question = a.) Convex mirror b.)i am not sure but concave mirror c.) Convex mirror Second question = given focal length = 10cm so since radius =f/2 to gind f use f=radius×2. f=10cm×2=20cm Third question= plane mirrors show us the same hight like the real object and the image is upright Concave mirrors they can show as inverted and magnified images when we get close it gets magnified and when we get far from it it gets inverted Convet mirrors they cover larger area for as to see and the rays are demnished Thanks sir now i have an improved understanding about mirrors correct me if i am mistaken in my answers 🖒 Thanks

@akshatsingh8910 21 день назад

c shall be concave as dentist has to see the teeth closely so he can take precis operation btw im in 7th class

@gamingwithvandit5927 10 месяцев назад

Sir ur explanation has helped me a lot to secure good marks in physics.. Thank you

@deepabhide212 4 года назад

1. a. Convex mirror b. Concave mirror c. Concave mirror 2. 20 cm 3. When we place an object in front of a plane mirror it is of the same height. In front of a concave mirror , it appears inverted. In front of a convex mirror it looks small and diminished.

@zeeshanali253 4 года назад

awsome....I my self a teacher but never saw such a great explanation

@_Medicos_aspirant Год назад

Clear my doubt thanx

@badalsinha2035 11 месяцев назад

Manny thanks for analysing the concept

@gamingwithjrrohith7949 4 года назад

3 ans If you look into a plane mirror, you can find that the size of the image is same as that of the object. If you look into a concave mirror, you can see an enlarged image when placed close and can see an inverted image when kept away. A convex mirror always forms a small and erect image.

@sucharitabhattachariya2151 2 года назад

Sir your way of teaching is great👍

@ManochaAcademy 2 года назад

Thanks for liking

@techknowledgevishwa8931 9 месяцев назад

1)(a)convex mirror (b)concave mirror (c)concave mirror 2)20 cm 3)by seeing the size of object in the mirror(if size is not magnifying or actual size then its plane mirror.//if size is magnifying or large size of than actual size then its concave mirror./// if size of object is less than actual size of object then its convex mirror.

@GlennOmare Год назад

1 a)convex b)concave c)concave

@poojapattanshetti1790 4 года назад

With your teaching I understand a lot

@nikhilsharma7523 2 года назад

MY ANSWERS 1) a)Convex b)Concave c)Concave 2) The focal length of a mirror is R/2 therefore Radius of curvature will be F*2 = 10cm*2 = 20cm 3) A plane mirror does not converge or diverge the beam of light. The distance between the object and the mirror. In a concave mirror, we appear inverted and diminished when kept far away from us and when kept near to the object it appears magnified and erect. In a convex mirror, far away objects appear to be near. I hope all my answers are correct.

@AarushiArt7 6 месяцев назад

Here for revision and now I know I have a great revision.....Thanks a lot sir

@crazyanju3103 2 года назад

1(a) Convex mirror (b) Concave mirror (c) Concave mirror 2 :- The radius of curvature of the mirror is 5 because R= focus/2 3:- If u look at convex mirror , ur image size will be always small and erect. If u look into Concave mirror , u can see an enlarged image when placed close and an inverted image . If u look into plane mirror , u will find ur image size same that of ur size.

@ghanshyamjanjal2650 2 года назад

R=20

@dileepkumarsirugudi976 2 года назад

R=20

@studyfairy2778 2 года назад

R will will be 20 because they already mentioned about focus length that is 10 to find the radius we need to double it so the ans will be 10×2 = 20

@tamannamishra2874 4 года назад

1 .( A )convex mirror because we can see a wider view of the area (B) convex mirror because it converges the rays of light into 1 single point making the area hotter . (C ) concave mirror because it enlarged the image of the teeth 2.if f=R/2 then R = f × 2 R = 10×2 = 20 cm 3. In a plane mirror the image is of the same size as that of the object and the image is erect . In a concave mirror the image looks inverted when far away from the mirror and magnified when near the mirror . In a convex mirror the object appears diminished helping us to see a wider view of the area .