No short of complex Calculus just rather simple observations and basic knowledge of slopes and continuity and boom you are able to solve this kind of seemingly tough questions. I know I'm very little to say , but yes few people just tend to make complex our thinkings unless someone like H.C Verma Sir has raised his voice for the actual love of the subject and the basicity of the phenomenonas ... Thank you sir .
NAMSTE SIR❤ i love your teaching style. and sir you are the great teacher.i have no word to express my feelings ❤😊 salute sir. recently i am in class 10 sir,1ne day i will crack iit after cracking i will meet u sir . please suggest me some gyan so i can become successful person❤.
It is sad that we cannever study physics for physics happily and know the subject Because we can only Sit for Competive exams . Which is sad but is the truth HCV sir is the best ❤️❤️
@@ishadixit2014 a subject can never be interesting when we understand sooo many chapters In a limited period of time We can obviously but it does not create a liking for a subject. Plus it is by default A setting that u have to score good for competition sooo...
Dear Sir, Thank you very much for such an insightful video. Really an eye opener. I just had one doubt. For a limit to exist at a certain point, say x=a, we say LHL=RHL=f(a), where all the three are finite values. You showed that approaching from both left and right, we get m1m2 = -1, but won't we also need f(a) = -1 to be able to prove that the limit is -1? Thanks in advance. Yours Truly, Varun
Respected sir, I am Tanjim Ahammed from West Bengal, My question is - What changes in the speed of a chemical reaction does a catalyst cause? a) only increase the speed of chemical reaction b) only decrease the speed of chemical reaction c) for some time it's increase the speed of chemical reaction and for some time it's decrease the speed of chemical reaction
Sir चरण स्पर्श ! Iइस पूरे चर्चा में एक मुख्य बात छूट रही है कि tan ऑफ़ exact 90 is not infinite but it is NOT Defined. अर्थात् infinite और Not defined दोनों अलग। बातें हैं । जब लाइन vertical होगी तो by definition ऑफ़ slope उसका slope define ही नहीं है और जब define ही नहीं है तो हम उसके slope को किसी संख्या के साथ किसी तरह का operation कर ही नहीं सकते । At last the statement is the product of two perpendicular lines in x-y plane is minus 1 except for the x and y axis. When we deal the geometry with the help of rectangular coordinate system then if line is parallel to y axis, we shall not use the term slope for it.
Sir, I liked your explanation about this seemingly innocuous question, using the idea of limits for the angle of a line near the y-axis I.e. /theta-1 approaching from the 2nd quadrant, and the corresponding angle /theta_2 of a line near the x-axis in the 1st quadrant, making the product tan /theta_1 x tan/theta_2 clearly negative. What if we approach the limit of the above angles /theta1 &/theta_2 both in the 1st quadrant ---->> to zero i.e. approaching the x and y axes simultaneously. Then the product tan/theta_1 x tan/theta _2 will be POSITVE isn't it Sir? Can you explain this possible case also please?
@@hcverma2928 Yes Sir. I saw your reply to Ishuver07 which is clear. That is the coordinate axes are perpendicular to each other always, but here we are rotating it by small angle theta in the anti clockwise direction starting at theta as negative angle for the X-axis, and rotating the 90 deg pair totally about the origin. It is wonderful to realise that m1x m2 is continuous as you pass go from theta below 90 deg to above 90 deg. Thanks❤
generally, for 2 lines we say M1 * M2 = -1 to get 0 as the denominator in the below stated formula: tan(m1-m2) = (m1 - m2) * 1/ (1 + (m1 * m2)) here, tan(m1-m2) = tan90 deg = k/0; (any no. k != 0) 1 + m1m2 must be 0, so, m1m2 must be -1 here is how we get the formula m1m2 = -1 sure, for other angles you can also do it like this 8:50 but doing this for 90 deg and 0 deg you can not say for sure this will be -1 but in the case of slope 90 deg and 0 deg difference in slope = tan(A-B) (here A is the line parallel to y and B is parallel to x) tan(A-B) = (m(a) - m(B)) * 1/(1 + (m(A)*m(B))) = (k/0 - 0) * 1/(1 + (k/0 * 0/1)) = k/(0 * (1 + (k/0 * 0/1))) = k/0 (here i can be wrong) so, A-B = 90 deg and as the denominator is already 0, so we do not need M(A) * M(B) to be -1 (i may be wrong)
Sir can you make the series fir jee mains abd advance chapter wise conception and misconceptions so that we will be able to clear our concept Please sir. .
A ball is projected from a point on the floor with a speed of 15 m/s at an angle of 60° with the horizontal. Will it hit a vertical wall 5m away from the point of projection and perpendicular to the plane of projection without hitting the floor? Will the answer differ if the wall is 22m away? In the first case isn't it depending on the height of the wall ?
Sir I live in the kalyanpur region of Kanpur nagar and two years ago I had arrived at iit for an scholarship program called V.N. Kulkarni scholarship by shiksha sopan and I had seen u but I didn't know you so much so I missed the chance for meeting you , So can you listen to my request that is there any program in the future that I can meet you.....
My name is Paras Shah , studying in class 12 and i am here to respectfully ask you a question. Sir can u please explain magnetic moment by comparing it with dipole moment in simple way. ❤
Sir my question what is difference between infinity and undefined (अपरिभाषित) ? and another one infinity is denoted by a symbol but undefined not any symbol why sir and what it's reason? sir please clear my confusion
yes, but only when u r in 4th dimension... let me give u a brief... can u control ur direction? YES! u can! if u want to move left or right u can or north or south or any direction u want to move... because we are 3rd dimensional being... just like that! if u were a 4th dimensional being u could have control time or say u can move time just as like u move left or right... understood? now coming to "speed" of time... first of all - time has direction (in our POV) so we call it "velocity" not "speed"... ok, imagine u r walking on a footpath with a constant velocity... if u want to increase or decrease the speed of your walking, u can! JUST like that! u can increase or decrease the velocity of time if u were in 4th dimension... OK now the conclusion of your question is... NO YOU CANT! you are living in a 3d world!! u can just feel time, not to play with it... book: A Brief History of TIME ~ Sir, Stephen William Hawking
@@divydyuti9337yaah! I already read this book but now, due to my class 10th board exam I can not able to research more on this topic:( actually I wants to know that's how to control on time(speed) in 3d dimensions. I wants to research on this topic further,how to make it possibles on 3d world (and I knows my english is very bad)
@@PriyanshuGarg-jc4ie my answer will remain same even after a million years! NO, YOU CAN NEVER CONTROL TIME BY ANY MEANS OR ANYHOW. and i love your interest in researching on these types of things, keep this fire inside you alive! see, when i say 4d this means - length, width, height & time. when a stickman drawn on a paper can not come out and talk to u, then how would we be able to come out of the 3d world and and do operations in 4d world? i know u were thinking of time machine at some point. well... eventually time machine are also not possible to make as it requires time to be folded like a paper. that is only possible when done in 4d world... keep asking questions like this, maja ara ha answer karne me...😉
brother / sister... if u were really dedicated on your goals... u wouldn't have come here. JUST GO! STUDY! what else u wanna hear? everyone will say this only...
Good explanation sir 🙏. Sir I have a doubt when we study about application of dimension formula then one of the use is to check the correctness of the equation. But my question is that when I try for equation F =GM1M2/r² so it is not correct so how we can say that the equation is valid .sir pls clear the concept behind it 🙏🙏
Sir mere paas ek question hai. Agar tan90=infinity the if we take out the range of tan theta the infinity and negative infinite are going to be in included brackes and that means that you denfined infinity!! So if infint a part of the term not defined magar socha jaaye to usko bhi include nahi kar sakte? Sir Please clear my doubt.
Sir can you please explain the concept of average velocity and average speed by taking a example of motion of a body and derive the formula of average Speed and velocity and what is difference between uniform speed and uniform velocity from its average velocity and speed?
sir I have a doubt. Like Bernoulli thorem mei if cross sectional area decreases velocity increases and there are some assumptions in this. But cross sectional area means r ki power 2. So velocity is inversely proportional to r ki power 2 but resistance is inversely propertinal to r ki power 4. Since resistance is opposite to rate of flow,this means velocity will be more if cross sectional area is high....but log to Bernoulli ka experiment bhi dikha dete hai and result bhi match ho jaate hai....why are we not considering resistance waala factor Had this doubt during studying of hemodynamics in mbbs
How to solve for distance as a function of time if force is itself a function of distance as gravitation Like f at an natant t=0 two bodies of masses M1 and M2 bodies were at a distance r0 and started accelerating by virtue of only their gravitational force after how much time they will collide
Sir can you explain the average speed and average velocity and the derivation of formula and what is different from uniform Speed and velocity from average?
Sir i had a doubt regarding proving of Newton's second law as real law Sir while proving third law by second law aren't we using third law to state that the f(ab) and f(ba) are oppos. and equal in magnitude ? I would be glad if you can help me in this . 🙏
The Greatest professor and scientist of twenty one
century of World
Nahi hain bhai ye chill
He is getting to much emotinal 😅@@astraborne3261
HC Verma ji is truly great but calling him the greatest professor or scientist of 21st century is a huge overstatement
One of the greatest great legend
If you have to observe this read his just the first chapter of concept of physics
Ghanta
Sir is truly looking like the Wizard of mathematical physics and physics
Thanks and Best wishes.
@@hcverma2928😂 overatted
@@Rahul_razz13
Just don't watch, why spreading hate ?
@@Only-Study-XI-01 I spreading fact
@@Rahul_razz13 Thats your opinion dumas$, not a fact.
Golden teacher of physics ❤
Thank you so much for sharing this information in details.
I had more and more doubt about this topic.
Now it get cleared.
Thank you so much sir!
Interactive teacher + chalk board = real interactive board 👏
Huge respect for you sir ❤
Thank you.
Father of physics.Huge respect for HC verma sir❤
Great explanation sir!!!! I am a teacher in Math definitely discuss this with students. I thank the student has beautifully questioned this 😊❤❤
Thanks and welcome. Please write to me at hcverma@iitk.ac.in
Shanka samadhan is excellent title. Perfect explantion by professor Verma
No short of complex Calculus just rather simple observations and basic knowledge of slopes and continuity and boom you are able to solve this kind of seemingly tough questions. I know I'm very little to say , but yes few people just tend to make complex our thinkings unless someone like H.C Verma Sir has raised his voice for the actual love of the subject and the basicity of the phenomenonas ... Thank you sir .
So nice. Thanks
Sir Isaac Newton Reborn as Sir HC Verma......
The Hairstyle Caught me!
King of physics and a great human being.
Its always a pleasure to learn from you, sir.
👍 thnku sir for great video.
Good afternoon sir a lots of respect from Nepal 🇳🇵
Fantastic student !! ❤
Yes.
One of the best physics teacher
Thank u sir great explanation
Sir u are the one of the people who inspired me to take maths as a stream
Love u sir
NAMSTE SIR❤
i love your teaching style.
and sir you are the great teacher.i have no word to express my feelings ❤😊 salute sir. recently i am in class 10 sir,1ne day i will crack iit after cracking i will meet u sir . please suggest me some gyan so i can become successful person❤.
It is sad that we cannever study physics for physics happily and know the subject
Because we can only Sit for Competive exams . Which is sad but is the truth
HCV sir is the best ❤️❤️
Why can't we study it out of interest?
@@ishadixit2014 a subject can never be interesting when we understand sooo many chapters In a limited period of time
We can obviously but it does not create a liking for a subject. Plus it is by default A setting that u have to score good for competition sooo...
Best writer of Physics Books . Greatest in the field of physics
Dear Sir,
Thank you very much for such an insightful video. Really an eye opener.
I just had one doubt. For a limit to exist at a certain point, say x=a, we say LHL=RHL=f(a), where all the three are finite values. You showed that approaching from both left and right, we get m1m2 = -1, but won't we also need f(a) = -1 to be able to prove that the limit is -1?
Thanks in advance.
Yours Truly,
Varun
Great explanation sir , I always find a bundle of joy in learning these types of questions and concepts.
Thank you sir for this amazing explanation 😊😊
Most welcome
SIR JI YOU ARE EXCEPTIONALLY GREAT 🙏
I m Pakistani but I like this teacher so much for physics
You are really a greatest and outstanding teacher of physics.
Wow ❤❤excellent
Respected sir,
I am Tanjim Ahammed from West Bengal,
My question is -
What changes in the speed of a chemical reaction does a catalyst cause?
a) only increase the speed of chemical reaction
b) only decrease the speed of chemical reaction
c) for some time it's increase the speed of chemical reaction and for some time it's decrease the speed of chemical reaction
god of physics ❤
Thank you a lot sir. If we learn with such logics and supporting maths everything in science has a meaning and will be useful I feel.
not really related to physics, but what are your opinions on schools forcing students to not have long hairs such as yours :)
Pranam gurudev
Very clear explanation. Thank you Sir.
This is the father of physics . I offered huge respect for HC Verma
sir one day we'll meet and it'll be the best day for me.
Great❤❤💐🙏
lovely sir amazing video as always
czcams.com/users/shortsUVMacPTbv3E?feature=shared
So nice of you
GOD OF PHYSICS 🥰🥰🔥🔥🔥🔥🔥
Huge respect for you sir ❤️❤️❤️❤️
Awesome sir 🙏🙏🙏
Sir चरण स्पर्श ! Iइस पूरे चर्चा में एक मुख्य बात छूट रही है कि tan ऑफ़ exact 90 is not infinite but it is NOT Defined. अर्थात् infinite और Not defined दोनों अलग। बातें हैं । जब लाइन vertical होगी तो by definition ऑफ़ slope उसका slope define ही नहीं है और जब define ही नहीं है तो हम उसके slope को किसी संख्या के साथ किसी तरह का operation कर ही नहीं सकते । At last the statement is the product of two perpendicular lines in x-y plane is minus 1 except for the x and y axis. When we deal the geometry with the help of rectangular coordinate system then if line is parallel to y axis, we shall not use the term slope for it.
Excellent explain
Sir, I liked your explanation about this seemingly innocuous question, using the idea of limits for the angle of a line near the y-axis I.e. /theta-1 approaching from the 2nd quadrant, and the corresponding angle /theta_2 of a line near the x-axis in the 1st quadrant, making the product tan /theta_1 x tan/theta_2 clearly negative.
What if we approach the limit of the above angles /theta1 &/theta_2 both in the 1st quadrant ---->> to zero i.e. approaching the x and y axes simultaneously. Then the product tan/theta_1 x tan/theta _2 will be POSITVE isn't it Sir?
Can you explain this possible case also please?
You are right. The meaning of this is to be explored. Just replied the same question by Ishuver 07 few comments above.
@@hcverma2928 Yes Sir.
I saw your reply to Ishuver07 which is clear. That is the coordinate axes are perpendicular to each other always, but here we are rotating it by small angle theta in the anti clockwise direction starting at theta as negative angle for the X-axis, and rotating the 90 deg pair totally about the origin.
It is wonderful to realise that m1x m2 is continuous as you pass go from theta below 90 deg to above 90 deg.
Thanks❤
It was really an insightful discussion. Your work is extremely beneficial for us Sir!🙏
So nice of you. My pleasure.
Sir please explain the concept of constraint motion..(spring, pulley and force constraint) ..(Laws of motion)...
Sir please bring videos on class 11th & 12th physics.
Great lecture sir ❤
Thanks
wow i really enjoyed learning from u sir.
Sir please make a video on how to solve parallel and series combination different geometrical shapes
Someone: why india is a poor country?
Me: because Bigg Boss is famous than this man.
bruh, so true!
@@ChillllZzzzz4 So we have to need aware towards our society through right awareness in social media
Thanks and Best wishes.
generally, for 2 lines we say M1 * M2 = -1 to get 0 as the denominator in the below stated formula:
tan(m1-m2) = (m1 - m2) * 1/ (1 + (m1 * m2))
here, tan(m1-m2) = tan90 deg = k/0; (any no. k != 0)
1 + m1m2 must be 0,
so, m1m2 must be -1
here is how we get the formula m1m2 = -1
sure, for other angles you can also do it like this 8:50
but doing this for 90 deg and 0 deg you can not say for sure this will be -1
but in the case of slope 90 deg and 0 deg
difference in slope = tan(A-B)
(here A is the line parallel to y and B is parallel to x)
tan(A-B) = (m(a) - m(B)) * 1/(1 + (m(A)*m(B)))
= (k/0 - 0) * 1/(1 + (k/0 * 0/1))
= k/(0 * (1 + (k/0 * 0/1)))
= k/0 (here i can be wrong)
so, A-B = 90 deg
and as the denominator is already 0, so we do not need M(A) * M(B) to be -1
(i may be wrong)
Thank You so much sir
❤️❤️❤
❤❤❤❤❤❤❤❤
Sir yu are the best..
You are great sir ❤❤❤❤❤
Today science gives us marks. But HC VERMA SCIEMCE gives us knowledge.
I really mugged this formula but didn't knew it's depth😅
One of really amazing n great professor of IIT Kanpur of his time..💯💯
Good explanation like always
Sir can you make the series fir jee mains abd advance chapter wise conception and misconceptions so that we will be able to clear our concept
Please sir. .
A ball is projected from a point on the floor with a speed of 15 m/s at an angle of 60° with the horizontal. Will it hit a vertical wall 5m away from the point of projection and perpendicular to the plane of projection without hitting the floor? Will the answer differ if the wall is 22m away?
In the first case isn't it depending on the height of the wall ?
In this question
sir i am currently in class 12th and I will be getting into iit delhi cse next year for sure and hope to meet you one day
Sir I live in the kalyanpur region of Kanpur nagar and two years ago I had arrived at iit for an scholarship program called V.N. Kulkarni scholarship by shiksha sopan and I had seen u but I didn't know you so much so I missed the chance for meeting you , So can you listen to my request that is there any program in the future that I can meet you.....
Write to sapanbajpai@gmail.com
Awesome explaination sir❤
Thanks and welcome
My name is Paras Shah , studying in class 12 and i am here to respectfully ask you a question. Sir can u please explain magnetic moment by comparing it with dipole moment in simple way. ❤
Thank you sir
Sir my question what is difference between infinity and undefined (अपरिभाषित) ? and another one infinity is denoted by a symbol but undefined not any symbol why sir and what it's reason? sir please clear my confusion
Hello sir i am priyanshu garg and my doubt is **can we control on the speed of time**is it possible.
yes, but only when u r in 4th dimension... let me give u a brief... can u control ur direction? YES! u can! if u want to move left or right u can or north or south or any direction u want to move... because we are 3rd dimensional being... just like that! if u were a 4th dimensional being u could have control time or say u can move time just as like u move left or right... understood?
now coming to "speed" of time... first of all - time has direction (in our POV) so we call it "velocity" not "speed"... ok, imagine u r walking on a footpath with a constant velocity... if u want to increase or decrease the speed of your walking, u can! JUST like that! u can increase or decrease the velocity of time if u were in 4th dimension... OK now the conclusion of your question is...
NO YOU CANT! you are living in a 3d world!! u can just feel time, not to play with it...
book: A Brief History of TIME ~ Sir, Stephen William Hawking
@@divydyuti9337yaah! I already read this book but now, due to my class 10th board exam I can not able to research more on this topic:( actually I wants to know that's how to control on time(speed) in 3d dimensions. I wants to research on this topic further,how to make it possibles on 3d world (and I knows my english is very bad)
@@PriyanshuGarg-jc4ie my answer will remain same even after a million years!
NO, YOU CAN NEVER CONTROL TIME BY ANY MEANS OR ANYHOW.
and i love your interest in researching on these types of things, keep this fire inside you alive!
see, when i say 4d this means - length, width, height & time.
when a stickman drawn on a paper can not come out and talk to u, then how would we be able to come out of the 3d world and and do operations in 4d world?
i know u were thinking of time machine at some point. well... eventually time machine are also not possible to make as it requires time to be folded like a paper. that is only possible when done in 4d world...
keep asking questions like this, maja ara ha answer karne me...😉
Has anyone have Motion coupon code ??
Super explanation ❤
Sir please make lectures on physics class 10th
Beautiful!
Long time no see sir
Sir I am a 2026 jee aspirant currently in class 11 can you please guide us with a good suggestion you have
brother / sister... if u were really dedicated on your goals... u wouldn't have come here. JUST GO! STUDY! what else u wanna hear? everyone will say this only...
With all due respect. Is long hair in bucket list 😂
Thanks sir great video
Here only शंका समाधान in hindi and everything in english 😂
Good explanation sir 🙏. Sir I have a doubt when we study about application of dimension formula then one of the use is to check the correctness of the equation. But my question is that when I try for equation F =GM1M2/r² so it is not correct so how we can say that the equation is valid .sir pls clear the concept behind it 🙏🙏
Great sir
Nice vedio sirji
Sir mere paas ek question hai. Agar tan90=infinity the if we take out the range of tan theta the infinity and negative infinite are going to be in included brackes and that means that you denfined infinity!! So if infint a part of the term not defined magar socha jaaye to usko bhi include nahi kar sakte? Sir Please clear my doubt.
Infinity is already defined 😂, u will study in higher mathematics
Wow 😮
First comment
ultimate
Sir please ek video chasing wale questions aur uske concept pe bana dijiye
Sir can you please explain the concept of average velocity and average speed by taking a example of motion of a body and derive the formula of average Speed and velocity and what is difference between uniform speed and uniform velocity from its average velocity and speed?
Love u 3000 sirr
sir aapke baal bahut achche lg rhe hai😊❤❤
Very nice 👍 Sir 😊
❤❤❤
Eintein brother
sir I have a doubt. Like Bernoulli thorem mei if cross sectional area decreases velocity increases and there are some assumptions in this. But cross sectional area means r ki power 2. So velocity is inversely proportional to r ki power 2 but resistance is inversely propertinal to r ki power 4. Since resistance is opposite to rate of flow,this means velocity will be more if cross sectional area is high....but log to Bernoulli ka experiment bhi dikha dete hai and result bhi match ho jaate hai....why are we not considering resistance waala factor
Had this doubt during studying of hemodynamics in mbbs
How did we come to know the value of G ( UGC), planks constant etc
Thank you sir i am buying your book for class 11🎉
How to solve for distance as a function of time if force is itself a function of distance as gravitation
Like f at an natant t=0 two bodies of masses M1 and M2 bodies were at a distance r0 and started accelerating by virtue of only their gravitational force after how much time they will collide
Sir can you explain the average speed and average velocity and the derivation of formula and what is different from uniform Speed and velocity from average?
😅what a coincidence LIMIT has been started in class and this thing came❤
Sir i had a doubt regarding proving of Newton's second law as real law
Sir while proving third law by second law aren't we using third law to state that the f(ab) and f(ba) are oppos. and equal in magnitude ?
I would be glad if you can help me in this .
🙏
❤