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Question: Answered & Verified by Expert
If a star emitting yellow light is accelerated towards earth, them to an observer on earth it will appear
PhysicsWaves and SoundMHT CETMHT CET 2019 (02 May Shift 1)
Options:
  • A becoming orange
  • B shining yellow
  • C gradually changing to blue
  • D gradually changing to red
Solution:
2930 Upvotes Verified Answer
The correct answer is: gradually changing to blue
Since, Doppler’s effect for light when source approaches
t=c+uc-u (Since, f>fyellow)
So, there will be blue shift

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