Hi, I am Dibyajyoti Das. My friends call me DJ (i know right :D), my students - DJ Sir, Dibya Sir, and colleagues - Mr. Das. (I am giving you these options, since I know you will have difficulty with my name - story of my life)
So, this is my YT channel. I love Physics, as you can tell, and this channel is devoted to everyone who loves this beautiful subject. I did my Masters in Physics from Indian Institute of Technology Kanpur (IITK), and then taught as Asst. Professor at HRC, Delhi University for 10 years (2013-2022). Currently I am the Director of Elevate Classes/ ElevateX
I hardly reply to mails and chats (one of my many demerits). Not because I don't want to connect with you, but because I am too self-absorbed most of the time. So, apologies in advance.
Thank you for reading all that. May God bless you all ! Take care :)
The part about what happens from the viewpoint of the muon is illogical though. Distance reference always has to be in the observer's own frame. An observer in the muon frame wouldn't use the length-contracted atmosphere as a reference for distance traveled, they would use a measuring rod in the muon frame. All they would use in the atmosphere frame is a point, not a distance. They would see how far that point moved along a measuring rod in the muon frame and how long it took. Being the reciprocal of what observers in the earth frame saw, the muon frame would also have to see the same distance covered between the two frames and the same amount of time passing. They would see a clock in the earth frame only going 2.25 ms but the clock in their own muon frame would move 11.25 ms. That's how reciprocity works, whatever the earth frame saw the muon frame would also see when you switch frames, they wouldn't see two different distances being moved between them or two different times being taken to move that distance.
You gave me my life back..... I am a 12th student knowing a bit about special relativistic theory....In class 11 it was very easy to feel the mechanical physics .. But In class 12 I was unable to find the relation between the electric field and the magnetic field..... Now this topic is also clear to me...... I get back my grip in physics again..,. Thank you so much sir🔥🔥🔥🔥
Outstanding explanation sir , whole lecture series is to good ,easy to understand thanku so much sir to provide such a valuable knowledge in free, please sir if it possible please please make a lecture series on ELECTRODYNAMIC
So nothing that we do remotely effects a black hole. But what if the singularity of a blackhole is on the cusp of a light cone. Then what we do may let matter and energy transfer into the blackhole .. either Its a stupid or genius thought😂 just saying
How total angular momentum will be conserved because direction of j is also taken precession around the z axis.. That means direction of j and tge plane of elctron is also changed.. But when angular momentum is conserved the direction and plane of motion is fixed. But here it is not happening. .
Sir if frequency changes constantly as we go up due energy conservation, then mass of photon should also change, then how can we calculate it directly by energy conservation
Great information, What will the probability be In a finite square well? How to determine that? Same what with harmonic well? . Will it be zero there too just like how you demonstrated in the infinite square well? Thank you.
16:10 My result of the integral and division is kT while in video is 1/2kT, is there anything I forgot to do in the integral? or it comes from some other assumption for molecules in thermodynamics?
