Class 11 Chapter 4 : VECTOR 05 :SCALAR PRODUCT OF VECTORS|| DOT PRODUCT OF VECTORS || 

Check out new videos of Class-11th Physics "ALPHA SERIES" for JEE MAIN/NEET ru-vid.com/group/PLF_7kfnwLFCEQgs5WwjX45bLGex2bLLwY Download the Physicswallah APP from Google Playstore (bit.ly/2SHIPW6) for Free Previous Year Question Papers, Quizzes ,TEST SERIES , Live Classes and much more... For PDF Notes and best Assignments visit @ physicswallahalakhpandey.com/ Follow us on: Instagram instagram.com/physicswallah/ Facebook: facebook.com/physicswallah Class 11 Chapter 4 : Vector 01 : Scalar and Vector || Types of Vector || Angle between Two Vectors ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-253EkOqCrmM.html CLass 11 : Chapter 4 VECTOR 02 || VECTOR ADDITION || PARALLELOGRAM LAW OF VECTOR AADDITION || ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-zHhIlBOiLV0.html CLass 11 Chapter 4 : VECTOR 03 : ADDITION and SUBTRACTION OF VECTORS || IIT JEE / NEET || ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-5jTL9iguDEQ.html Class 11 Physics Chapter 4 : VECTOR 04 RESOLUTION OF VECTOIR AND ADDITION OF THREE VECTORS ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-3BE_A2v9SmI.html Class 11 Chapter 4 : VECTOR 05 :SCALAR PRODUCT OF VECTORS|| DOT PRODUCT OF VECTORS || ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-Arxus4I23hM.html Class 11 Chapter 4 : VECTOR 06 VECTOR PRODUCT || CROSS PRODUCT OF VECTORS || IIT JEE / NEET VECTORS ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-QPLEx-eh3FA.html Class 11 chap 04 || Vector 07 || Triangle Law Of Vector Addition || Triangle Law Vectors ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-YOs0Y4TtK-U.html Class 11 chapter 04 || Vector 08 || Cosine Law || Proof Of Cosine Law by Vectors|| Triangle Law ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-qk3NIyaw8Nc.html

The biggest quality of a youtuber is that he never asks for subscribers...... and this quality is eminent in Mr. Alakh Pandey

Thank you sir, 😍 Apka channel 1 din bohut bda hoga dekhna

India's no1 online coaching...☺☺😱😱🙌🙌🙆🙆

Anyone: Who is Alakh Pandey? Me:He is the emotion of each n every science student,love you sir🥰

21:24 ans is 1/2 (2i + 3j + 8k) . (4i - 4j + αk) = 8 - 12 + 8α = 0 = 8α = 4 α= 1/2

One of the best physics teacher on RU-vid. Helping a lot during this lockdown.

For PDF Notes and best Assignments visit @ physicswallahalakhpandey.com/ To support me in my journey you can donate (Paytm@ 9161123482) or Alakh Pandey ,Bank of Baroda, Rajrooppur, Allahabad,U.P IFSC: BARB0RAJROO Account No: 19210100020819 A small amount of Rs 100 even will be of great help. Follow us on: Instagram instagram.com/physicswallah/ Facebook: facebook.com/physicswallah Class 11 Chapter 4 : Vector 01 : Scalar and Vector || Types of Vector || Angle between Two Vectors ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-253EkOqCrmM.html CLass 11 : Chapter 4 VECTOR 02 || VECTOR ADDITION || PARALLELOGRAM LAW OF VECTOR AADDITION || ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-zHhIlBOiLV0.html CLass 11 Chapter 4 : VECTOR 03 : ADDITION and SUBTRACTION OF VECTORS || IIT JEE / NEET || ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-5jTL9iguDEQ.html Class 11 Physics Chapter 4 : VECTOR 04 RESOLUTION OF VECTOIR AND ADDITION OF THREE VECTORS ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-3BE_A2v9SmI.html Class 11 Chapter 4 : VECTOR 05 :SCALAR PRODUCT OF VECTORS|| DOT PRODUCT OF VECTORS || ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-Arxus4I23hM.html Class 11 Chapter 4 : VECTOR 06 VECTOR PRODUCT || CROSS PRODUCT OF VECTORS || IIT JEE / NEET VECTORS ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-QPLEx-eh3FA.html Class 11 chap 04 || Vector 07 || Triangle Law Of Vector Addition || Triangle Law Vectors ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-YOs0Y4TtK-U.html Class 11 chapter 04 || Vector 08 || Cosine Law || Proof Of Cosine Law by Vectors|| Triangle Law ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-qk3NIyaw8Nc.html

Who all are there for 2024 😅😅

Sir literally no fake praises but your teaching totally cleared my doubts ❤️❤️

I just got admitted to class 11 one month ago , after attending some classes of physics at tuition and self studying i found it to be the worst subject, I did't get any topics.But after following this lovely channel, i got interest in physics. This teacher is awesome.

27:35 the value of theeta 'll be 90°

500rupees ke board se starting kiye sir or aj kaha tak pahuch gye Bas hame ek choti si suruaat ki zarurat h Hatt 📴 you sir Such a change in education.

At 21:19 (2i + 3j +8k).(4i-4j+ak)= 0 ( 8 -12+8a)=0 8a= 4 a= 1/2

Sir I don't go to any coaching, my complete physics is dependent on u,like for others here doing same

sir salute you for your great attention towards the students also in the late night.A teacher like you is a teacher in a million.🙏

आप जैसे लोगों का ही जरूरत था. बहुत ऐसे Student है जो पैसे के अभाव में पीछे रह जा रहे हैं।Very helpful for us

I GOT 68.5/70 in my school examination!🙂Very happy and satisfied with hard work which i done with you!Your assignments helps me a ton! MERCI🙏🏻

भगवान आपका भला करे , मेरे भाई, आप हमारे देश को एक स्वर्णिम भविष्य की ओर अग्रसर करने में महान योगदान कर रहे है। गरीब व मध्यम वर्ग के करोड़ो क्षात्रों की तरफ से आपका आभार। प्रार्थना है आप एक दिन शिक्षा व विज्ञान के क्षेत्र में अपने निष्काम योगदान के लिए भारत रत्न से विभूषित हो।

Alakh sir toh acha padha hi rahe hain and that's great, but the comment section is fabulous too because you people solve each other's queries! I'm so glad, an applause for yourselves please👏👏

2024 me feel lene wale log like karo😆varna feel kharab ho jayegi !!!!

*The* *youtuber* *who* *never* *ask* *for* *subcriber* *is* *one* *and* *only* *physics* *wallah* *Great* *teacher* *I* *never* *seen* .

I will inturn watch all the ads to support sir panday😇

Dislikers must be pados wali aunties or other coaching teachers who are facing loss 😝😝😝😝😝😝 Pandey sir 😍😍😍

sir the answer to that question is 1/2 21:39 and theta will be 90 degree in second question 27:31

Physics Wallah(Subscribers)= Unacademy JEE+ Vedantu JEE+ BYJU'S JEE❤️

I am from Bangladesh.But I am really greatful to India for this type of educational channels.

ONLY person in universe who think for better at every time and give his time to us for our better future I have no words how to say thank you always think our future bright none like you sir

2024 janta......🤚 attendance here😊

Who r watching on 2020 😍 best teacher woow ... Grt ...m just a fan of u sir ... NEET asan kr dia apne sir ... I can do ☺

Thanks sir Ans - angle between R & S is 90 degree

27:35 answer:theta =90 as cos theta is 0 pls reply wanting to confirm .thank you very much sir I recently entered 11th Std seeing ur videos I didn't take admission to coaching. Sir pls continue teaching, there are many others who are receiving knowledge from you only and going ahead

24:31 !answer is theta=30°

your voice is very much audible today no need of earphones today. thanks sir

Sir = education minister of RU-vid

India needs teachers like you!! Love the way u teach

2;30am + alakh sir's lecture = peace 😍 + osm feel 😍

Sir I study in a government school and the teaching faculty is very poor.your videos are a great help for me.you have such a good heart to teach us free.may good bless you sir🙂🙂

I am in class Xi at first I afraid about this subject but now I love this subject because of only u sir thank you sooo much sir 😊😊

Sir, So nice of you. This is the best physics class i could see on internet these days. And you are teaching with an intention that all the students must get every bit of the portions. You are a role model. Once again, thank you for all your hardworks. May god bless you sir.

I get better understanding than at my school here .. Really great!!!

Sir I am watching this video on21 aug, 2019 and this is just amazing ...hit a like if anyone is watching after this date... Pls

#Stop Uncadmey #Stop Vedantu #Stop BYJU'S Jion #PhysicsWallah

He accepted his mistake in the solution this shows how good person he is ❤❤

The only teacher on RU-vid who never asks to subscribe his channel,and still it's growing..

24:10 answer should be cos theta=√3/2 that is equal to 30°

30:56 for *FEEL.*

Sir you don't know that I am watching this video in 2022 for class 11 CBSE and I am still fully satisfied without any reasons because of your videos are best then and are best now♥️🥰💝.Sir love you so much for your struggles and hardworking only literally only for your students 🥰🥰🥰. Sir you are great 💝

27:23 answer of the question is ZERO Everybody has same

Plzzzz make video on mathematical tools. Plzzzz sir

27:35 answer is angle 90 degrees as Cos 90 is 0 and Dot product of the two vectors is 0, so zero divided by any number will be zero. If right then please like it

Kon kon ye video dekh rha hai jb alakh sir Billionare hai...

The ans is cos=0 Angle=90°

The best teacher I have found u....Thmnxxx sir for being helping us ...Reallyyy very interesting ur explanation 😊😄

Sir you teach with positivity, smile and love. And teachers around you who face competition and gets motivated to deliver best quality to students. The work you are doing is eternal. Thanks.

"main feel lene ko bolta hoon toh app kahin aur feel le lete ho" this was a dark line.....

Only two person in the universe can explain like this 1) Alakh Pandey Sir & 2)Alakh Pandey Sir Salute you sir for teaching us free and not blocking any of the videos to earn money. Like every youtuber do 🛐🛐

One of the best physics teacher I've seen

Thank you so much sir . You are doing a great job. India is in need of people like you 😉 continue teaching 🙏 may Bharat Mata lead you to greater heights

answer is cos 90 as 1-1/mod R* mod S = 0/mod R mod S = 0 and cos 90 =0 @27:32

Sir i want to crack jee main examination .so please keep try to make too many videos 🤗🤗🤗🤗🤗 god bless you everyday........🙂🙂

The answer is Cos=0 90°

No one can beat you in physics . And for your efforts for us I will see all adds in your 👏👏👏👍👍✌️✌️👌👌✌️🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏video

He knows his students really well. When he told feel lelo i literally went into some another zone😂

27:28 The answer is 90 degree Cos 90 ka maan 0 hota hai

Sir ur video is awesome till date i m not taking any tution bt i m confident my frnds who r taking tutions i can solve prblms more than them only bcoz of u

@27:33 Cos(theta) = 90° Cos(theta) = 1-1/(√1^2+1^2)×(√1^2+1^2) Cos(theta) = 0/2 = 0 Cos(theta) = 90° This could also be because the values of A•B = 0 which only happens when A & B are perpendicular to each other (90°) Am I right 🤔 though?

24:29 the answer is 3 by root 6 into root 2

Best teacher award must be given to this legend 💛💛

THANK YOU FOR THE "FEEL" AT THE END.

First time I think all physics teachers are like "😈😈😈😈" But physics wallah is like " 😆😆😆😍😍😍"

He is a Beast teacher which I have seen in my 17 years of life

21:07 :- alpha = 1/2

26:12 nahi sir galti sab se hoti hai. hamse bhi hoti hai paper me.

U r really osmmm sir....... U vedio r lengthy instead of this we r interested 2 see your vedio....... Plzz teach in my school to

Thanks sir .. I really feel that from when I started seen your video physics is very easy . 👍 Thanks sir , you are the best teacher.......

27:33 Answer is 0 Sir you teaching skils are amazing You are the best teacher

If any students fear from physics the god has gifted a medicine for them like a alakh sir

I'm enrolled in FIITJEE Allahabad (one of good centres of fiitjee, producing IITians every year) yet I love to watch your videos. Also, my concepts received from you are much better than from my faculty. I hope, I get enough time through my entire JEE preparation to learn each and every concept from you, along with my coaching.

Sir my exams are after one month and just started to watch ur videos from yesterday i didnt had to rewind for once everything is clear like water love and respect from Bangladesh 🇧🇩

Sir....app ki videos tho koi bhi samajh lega.......app padhate etnna aacha ho.....kie kya kahne .....basic sie shru krte ho takke sab samjhe or fir dehere dehere Lev increase krte ho......no need justifying your self .....app great the , ho or rahago! Saluate from ....AN INDIAN!

Sir u are truly the bahubali of physics 👍👍👍

27:35 ans 90

anyone in 2024?

u are awesome physics teacher ever seen in my life.. lots of love from America....love uhhh sir. No one here can explain as better as u.. r u bestest.!

At 27 : 40 ans is theta = 90° ie, both vectors are perpendicular to each other ☺️ Thank you so much sir 🤩🤩🥰🥰🥰🥰😍🤗🤗🤗🤗🤗🤗🤗🤗🙂🙂🙂🙂🙂🙂🙂

Sir you are the best teacher for chemistry and physics both subject❣️❣️❣️love u sir

29:42 Another way to solve this is by finding X component and Y component and calculating tan α. Since the vector is i + j, both the components are 1. tan α = P/B = 1/1 = 1 = 45°.

Allakh sir is the greatest teacher of India.and we should also support him by donating some money in his account.because we give money to all the other cruption teachers also.Sir also needs support and we should provide it if we can.

sir 27.48 answer is "0" that is cos90

Sir I am from future .....I just want to say that one day you will be the most famous physics teacher of INDIA ....keep teaching us and us students will always support you and make you proud

Sir you are the best teacher in the pw

Sir please make video on differentiation , integration , trigonometry,graphs ,log etc used in physics .

Good to see that sir accepts the smallest mistakes he does while making the video And gives us the correct answer of it(24min16sec of this video) Thanks alot sir for giving us quality education👍👍

Thaks sir, for your valuable classes which built me to love physics Thank you very much pandey sir (The Legend of Physics)

He is literally legend, this year I really didn't study and my half-yearly's are just after 2 days .....after seeing his video's of chemistry and physics, I'm so confident that I'll easily score 90+. Can't thank him enough. 💖💖

I got answer 0/2 which is 0 hence theta is 90

Sir square root of 2 square + 1square +1square is equal to square root of 6

I am watching this on 29th feb 2020 ( 5 PM ) this will be memorable #LEAP YEAR🥰

2023 janta......🤚 attendance here😊