Special theory of relativity — CSIR Net PYQ (Question 6)
A Special theory of relativity previous-year question (PYQ) from Classical Mechanics (CSIR Net). Read the question, check the correct answer, then practise the full topic.
Question 6 of 27 · 5.0 marks
Consider a radioactive nucleus that is travelling at a speed with respect to the lab frame. It emits -rays of frequency in its rest frame. There is a stationary detector (which is not on the path of the nucleus) in the lab. If a -ray photon is emitted when the nucleus is closest to the detector, its observed frequency at the detector is
- 1
- 2
- 3
- 4
Correct answer: Option 1
Practise all 27 Special theory of relativity questions with instant feedback.
Practise this topic →About this question
This Special theory of relativity PYQ is part of the Classical Mechanics section of CSIR Net. Browse more Special theory of relativity questions or join the PhysicsByAaryan live batch for full conceptual coverage.