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Physics Quiz | 25 Important Questions and Answers | Science GK Quiz | Competitive Exam Preparation 

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In this video, 25 important questions from Physics are included.
Which one of the following is a vector quantity?
What type of energy is stored in the spring of a watch?
The working of a rocket is based on which Newton's law of motion?
What is the rotational analogue of mass in linear motion?
What is the minimum escape velocity of a rocket to be launched from Earth to space?
What is Young's modulus of a perfectly rigid body?
The value of acceleration due to gravity at the equator will ______ when the Earth stops rotating.
Which of the following is a good conductor of electricity?
What is the principle of Fibre optical communication?
What is the frequency of direct current?
"Curie" is a unit of?
What is the unit of relative density?
Which of the below waves cannot be polarised?
What is the fourth state of matter?
Which is the force that causes objects to float?
Which of the below is used to locate submerged objects?
Which device is used for converting alternating current (AC) to direct current (DC)?
Which of the below is a measure of sound level?
Acceleration is inversely proportional to?
What is the principle behind hydraulic brakes used in automobiles?
Sound cannot travel through?
How does the heat from the Sun reach Earth?
What is it called when the Sun is exactly over the Earth's equator?
The surface tension of a liquid decreases when its temperature is?
Which of the below is a non-renewable energy source?

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23 окт 2020

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Комментарии : 200   
@ghh712
@ghh712 6 месяцев назад
24/25. I didn't know that acc'n due to gravity would change if the Earth stopped rotating.
@architswain6597
@architswain6597 Год назад
It was very useful in IGKO Exam, I am from Airson English School in Badlapur, INDIA 👍👍👍👍👍
@user-mh5od2pf2i
@user-mh5od2pf2i 6 месяцев назад
I have got 11 points, Thanks for your acknowledge
@Alic_alder
@Alic_alder Год назад
Thanks for giving us these knowledge❤
@kishorebabu5543
@kishorebabu5543 23 дня назад
25/25 bro very easy. Always thankful for this channel ❤
@seemabadhani4542
@seemabadhani4542 17 дней назад
Chup Jhute,jhut bol raha hai sala
@rishipramanick6823
@rishipramanick6823 9 месяцев назад
One thing is the propulsion of rocket is based on second law of motion where it states that if f is proportional to momentum then if u differentiate f wrt t then u get f = vdm/dt + mdv/dt mass of fuel is not constant in expulsion of rocket then f= vdm/dt and hence rocket propulsion is based on 2nd law of motion
@yusufdalal9691
@yusufdalal9691 2 года назад
Sonar
@m.praveenm.pradeep6792
@m.praveenm.pradeep6792 2 года назад
I've got 18 points. It's amazing
@tasmia3550
@tasmia3550 3 года назад
I surely recommend you to add like this vedios #really helpful 👍😊
@LNT
@LNT 3 года назад
So nice of you 😁😁
@sharminakp36
@sharminakp36 2 дня назад
25/25 marks lgot it l studiying 8std GHSS puzhathi
@prudhviraj4610
@prudhviraj4610 3 года назад
But very important physic questions sir
@LNT
@LNT 3 года назад
Most welcome 😁
@moorthycisf
@moorthycisf 2 года назад
newton's third law states that every action has an equal and an opposite reaction relative density is density of substance / density of water and we get to see that density of water is nothing but the formula of density is mass / volume so density of substance also = mass / volume we get to see that everything gets cancelled and thus it has no unit unlike the normal density which has unit as kgm^3 obviously we know 3 forms of matter exist which are solids liquids and gases and if there is something correct as the fourth state of matter it could only be plasma . buoyancy obviously cuz we know that force buoyant = density * volume * gravity which is 9.8 m/s or 10m/s . in pascal's law i think so it states that if a pressure s put on one part of the object it also is same in the other end obviously we know that sound cannot travel in vaccum pressure is increased with depth
@viggosav6316
@viggosav6316 3 месяца назад
Okay
@shabbirshaik7496
@shabbirshaik7496 Год назад
yah its amazing questions yar this youtube channel is very useful to us ra
@deekshith7917
@deekshith7917 Год назад
I got 22/25 Tq so much 👍👍
@amritdeepbhakna6434
@amritdeepbhakna6434 Год назад
Thanku sir awesome class😊
@pankajsiddhu5787
@pankajsiddhu5787 2 года назад
17/25 is correct
@shabbirshaik7496
@shabbirshaik7496 Год назад
yeah yarr nice yarr well done ra
@user-mn9hd3ft9q
@user-mn9hd3ft9q 3 месяца назад
Thanks to you sir 👍❤❤❤
@moorthycisf
@moorthycisf 2 года назад
yeah this is interesting fun fact : how to find whether a quantity is a scalar or a vector a vector * vector = a vector quantity a scalar * scalar = scalar quantitiy a vector* scalar = vector we can see that force formula is mass * acceleration so we can basically see that using basics we know that acceleration is a vector quantity so it is basically a vector quantity
@bholanathsaha1161
@bholanathsaha1161 2 года назад
Except Work it is a product of two vector quantities
@alpha7742
@alpha7742 2 года назад
@@bholanathsaha1161 cuz it's a scalar product
@ahadmustaqeem2266
@ahadmustaqeem2266 2 года назад
No dude there exist dot product as well vector*vector= scalar like in kinetic energy velocity squared is a dot product there
@malikaminsajid3879
@malikaminsajid3879 2 года назад
Good video
@shabbirshaik7496
@shabbirshaik7496 Год назад
suprlyy teached yarr u are the great person yarr
@bulumohanty9605
@bulumohanty9605 2 года назад
Plasma
@yusufdalal9691
@yusufdalal9691 2 года назад
Infinitty
@muhammafhamza1860
@muhammafhamza1860 2 года назад
"Bequeral" is the unit of radioactivity. Curie is not the unit.
@kanna-chan6680
@kanna-chan6680 Год назад
Both units are valid
@leviackermanoooiii
@leviackermanoooiii Год назад
There are si and cgs units
@NOMAN-KHAN...234
@NOMAN-KHAN...234 8 месяцев назад
Curie is also a unit of radioactivity
@mdioxd9200
@mdioxd9200 11 месяцев назад
2:33 Centrifugal force may stop applying, but the part of the force due to gravity doesn't change. My weight doesn't change when I am carried by an elevator, since my mass stays the same, acceleration caused by gravity doesn't change when other forces apply, only the net force does.
@ayusingh3561
@ayusingh3561 8 месяцев назад
Your weight does change in an elevator, mass and weight aren't the same thing The apparent weight in a lift is vectorial sum of of ma and mg where a is acceleration due to lift and g is earth's gravitational field Also due to earth's rotation the centrifugal force in non inertial rotational frame causes our weight to decrease slightly this apparent change is due to change in value of g, where g(apparent)=g-Rw²cos(y) where g=9.8m/s², R=radius of earth, w= angular speed of earth and y=latitude since y at equator=0, cos(y)=1 and g(apparent)=g-Rw² when the earth stops rotating w becomes zero and g(apparent)=g which is greater than g-Rw², therefore the value of g increases and so does the weight, which can simply be defined as product of mass×g in accordance with newton's laws
@amangautam105
@amangautam105 Год назад
18
@bulumohanty9605
@bulumohanty9605 2 года назад
Radar
@SaritaRai-tm9ph
@SaritaRai-tm9ph 8 месяцев назад
Please play in live also
@chandrakumar9750
@chandrakumar9750 Год назад
The model question paper in scientific assistant for ssc exam🙏🙏🙏🙏
@bulumohanty9605
@bulumohanty9605 2 года назад
Equinox
@bulumohanty9605
@bulumohanty9605 2 года назад
Decreased
@DooshimaAminde-yd7hy
@DooshimaAminde-yd7hy 18 дней назад
I also got 17/25.
@yusufdalal9691
@yusufdalal9691 2 года назад
First
@bulumohanty9605
@bulumohanty9605 2 года назад
Graphite
@yusufdalal9691
@yusufdalal9691 2 года назад
Solar
@yusufdalal9691
@yusufdalal9691 2 года назад
Radio
@Edison-newworldBlogspot
@Edison-newworldBlogspot 3 года назад
18/25 - I able to answer correctly!!!
@LNT
@LNT 3 года назад
Super 👏👏👏
@yusufdalal9691
@yusufdalal9691 2 года назад
Kg m2
@bulumohanty9605
@bulumohanty9605 2 года назад
Convection
@okinawa8994
@okinawa8994 2 года назад
15/25
@swarasoni5514
@swarasoni5514 Год назад
Nice
@publiccomment8524
@publiccomment8524 3 года назад
Please dont read the answer a, b, c, d it feel bore,just read the right answer.
@bulumohanty9605
@bulumohanty9605 2 года назад
Third
@yusufdalal9691
@yusufdalal9691 2 года назад
Water
@competitionpage363
@competitionpage363 Год назад
My score 19/25🙂
@bulumohanty9605
@bulumohanty9605 2 года назад
No unit
@santriptifood9183
@santriptifood9183 3 года назад
12
@victorkumar3433
@victorkumar3433 3 месяца назад
I have got 20/25
@AmithAmith-ku5ng
@AmithAmith-ku5ng 2 года назад
Force
@rajnishkushx
@rajnishkushx 3 года назад
Vacuum is correct
@reetasharma9523
@reetasharma9523 6 месяцев назад
2-d
@yusufdalal9691
@yusufdalal9691 2 года назад
Radiation
@yusufdalal9691
@yusufdalal9691 2 года назад
Tadioactivity
@johnpeter3989
@johnpeter3989 Год назад
what is this polarised mean
@jamsheda100
@jamsheda100 19 дней назад
I got 22 out of 25
@malikaminsajid3879
@malikaminsajid3879 2 года назад
Sir plz PDF mcqs send me
@proseonthepage5812
@proseonthepage5812 11 месяцев назад
I can’t believe I’m watching this for entertainment
@seemabadhani4542
@seemabadhani4542 17 дней назад
25/25
@yusufdalal9691
@yusufdalal9691 2 года назад
Rectifier
@AmithAmith-ku5ng
@AmithAmith-ku5ng 2 года назад
3
@yusufdalal9691
@yusufdalal9691 2 года назад
Refraction
@bulumohanty9605
@bulumohanty9605 2 года назад
Vaccum
@bholanathsaha1161
@bholanathsaha1161 2 года назад
23
@Honestly_Me0
@Honestly_Me0 5 месяцев назад
I got 22 correct.😊
@TechwithMC
@TechwithMC Год назад
25/25 🎉🎉❤❤ 9th class
@shortsbykrishna.v4400
@shortsbykrishna.v4400 Год назад
22 out of 25
@yusufdalal9691
@yusufdalal9691 2 года назад
Increase
@tysonwu6312
@tysonwu6312 2 месяца назад
Why? 2:37 I don’t understand, should the acceleration DUE to g be constant?
@user-iy5op2ct9o
@user-iy5op2ct9o 29 дней назад
22/25 correct
@anjalinimmakayala4475
@anjalinimmakayala4475 Год назад
Tq sir
@tpmglospel8310
@tpmglospel8310 Месяц назад
25 correct
@zunairaabbas1646
@zunairaabbas1646 2 года назад
13/25
@chinnaorsu7192
@chinnaorsu7192 2 года назад
App name enti sir
@yusufdalal9691
@yusufdalal9691 2 года назад
Newton law
@sindhudone5415
@sindhudone5415 Год назад
Total internal refraction
@GNBSolada
@GNBSolada Год назад
24/25 correct,😃
@sabeelasabi3141
@sabeelasabi3141 Год назад
😮
@vsrinu5191
@vsrinu5191 3 года назад
Sir please share classes in Bipc Eamcet
@LNT
@LNT 2 года назад
Sure 😊
@yusufdalal9691
@yusufdalal9691 2 года назад
60uz
@thakurvickychauhanmaffiya1821
Sir indian tailent paper
@bulumohanty9605
@bulumohanty9605 2 года назад
9.8km/s
@sankhayanbhaumik6452
@sankhayanbhaumik6452 3 года назад
Very nice Sir......
@LNT
@LNT 3 года назад
Thank you 😁😁
@platinumart8901
@platinumart8901 Год назад
17/25
@sindhudone5415
@sindhudone5415 Год назад
Moment of inertia
@tusharchauhan9765
@tusharchauhan9765 7 месяцев назад
😮
@AmanBarik-rn5wv
@AmanBarik-rn5wv 3 месяца назад
It's very simple question 😂
@sindhudone5415
@sindhudone5415 Год назад
Decibel
@anuraganand3612
@anuraganand3612 Год назад
I got 17 I am in 6th standard
@jyothimaddipati6916
@jyothimaddipati6916 Месяц назад
A force
@AmithAmith-ku5ng
@AmithAmith-ku5ng 2 года назад
B
@yusufdalal9691
@yusufdalal9691 2 года назад
11.2 mm.s
@akhilsyed12
@akhilsyed12 Год назад
MY ALL ANSWER ARE CORRECT
@shauryaverma6362
@shauryaverma6362 2 года назад
19/25
@yaf9958
@yaf9958 2 года назад
I got all of it
@Salvation_Ministry967
@Salvation_Ministry967 2 года назад
Liar
@bulumohanty9605
@bulumohanty9605 2 года назад
Buoyancy
@sindhudone5415
@sindhudone5415 Год назад
Infinity
@sindhudone5415
@sindhudone5415 Год назад
Potential energy
@AmithAmith-ku5ng
@AmithAmith-ku5ng 2 года назад
D
@user-xd3sn6ps3w
@user-xd3sn6ps3w Год назад
Only 15 questions correctly answered 😢😢
@GopiT-dr5kv
@GopiT-dr5kv 3 месяца назад
Previous paper's levu
@glorylazrus8687
@glorylazrus8687 2 года назад
20/25.. ☺️🌼
@pubgprosreview3426
@pubgprosreview3426 Год назад
Hi contact me plzzz
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