COMEDK · Physics · 16. Waves and Sound
A star is moving away from the earth with speed
v. Change in wavelength \(d \lambda\) observed on earth is
- A \(\lambda v / c\)
- B \(\lambda v /(c+v)\)
- C \(\lambda c /(c+v)\)
- D \(\lambda c / v\)
Answer & Solution
Correct Answer
(A) \(\lambda v / c\)
Step-by-step Solution
Detailed explanation
The Doppler shift in wavelength of light from star is given by \(d \lambda=\frac{\lambda v}{c}\)
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