Special theory of relativity | Special relativity questions and answers | Special relativity lecture

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About this video
In this video, I have explained the questions on the special theory of relativity. I have solved a few questions on special theory, including MCQ(s) and bsc 1st year questions and answers. The objective of this video is to give solutions to the problems of special relativity and help the students in the examination. I have solved MCQ(s) and descriptive questions to help the students.
Topics covered:
(i) Length contraction
(ii) Time dilation
(iii) How to solve problems on muon decay and
(iv) Twin paradox.
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[@usanoophysics3121]

thanks

[@mridulpandey8318]

An amazing video for beginners who have read the theory but dont understand how to approach questions, sir.

[@physicsforstudents]

Thank you very much 👍

[@alemsegedmelles3623]

HAVE COMPLETE UNDERSTANDING SPECIAL RELATIVITY THROUGH SOLVED PROBLEMZ.. THANK YOU SIR

[@physicsforstudents]

Welcome

[@manojs7196]

Really good

[@silasmeleki9583]

Thank you so much!

[@physicsforstudents]

You are welcome

[@i_am_ruhi86]

Thank you so much

[@physicsforstudents]

Welcome. You can also look into this video of Special Relativity kzbin.info/www/bejne/Z2W0aKOvi8t3Zqc

[@snehamukherjee1443]

Sir, the 2nd question of muon in descriptive questions ,,,,the cause behind the question that "at what altitude does muon decay" can't understand.....if you describe this in comment box or your video description.....its become too helpful 🙏....so sir plz kindly give that

[@physicsforstudents]

Ok, fine. Let me look into it. One question? Do you think if I make more videos on the question, answer of Special Relativity, will it be useful?

[@physicsforstudents]

The elapsed time for a process depends on which observer is measuring it. Foe example, the time measured by the astronaut is smaller than the time measured by the earthbound observer . The time elapsed for the same process is different for the observers, because the distance the light pulse travels in the astronaut’s frame is smaller than in the earthbound frame. Cosmic ray particles that continuously rain down on Earth from deep space. Some collisions of these particles with nuclei in the upper atmosphere result in short-lived particles called muons. The half-life (amount of time for half of a material to decay) of a muon is 1.52 μs when it is at rest relative to the observer who measures the half-life. This is the proper time interval Δτ. This short time allows very few muons to reach Earth’s surface and be detected if Newtonian assumptions about time and space were correct. However, muons produced by cosmic ray particles have a range of velocities, with some moving near the speed of light. It has been found that the muon’s half-life as measured by an earthbound observer ( Δt ) varies with velocity exactly as predicted by the equation Δt=γΔτ. The faster the muon moves, the longer it lives. We on Earth see the muon last much longer than its half-life predicts within its own rest frame. As viewed from our frame, the muon decays more slowly than it does when at rest relative to us. A far larger fraction of muons reach the ground as a result.

[@QuantumEntangledSelf]

@4:00 you say 1/1 = 0 ... that hasn't been true since grade school!

[@physicsforstudents]

Yes, very true. That's a mistake. Sorry for that. How is the overall video ?

[@mainakkoley8691]

@@physicsforstudents yes sir the video is very informative. But I confused due to this mistake.

[@physicsforstudents]

@@mainakkoley8691 Welcome. I hope now you it is fine.

[@sugarr603]

​@@physicsforstudentshow can u do this mistake sir. It's so basic. 1/1=1. Unbelievable. That a highly intellect person did this mistake

[@mainakkoley8691]

11:02 sir , it should be 10^(-31). A mistake sir.

[@physicsforstudents]

Yes. Sorry for that. Thank you for pointing out.