Optics Question 263

Question: A heavenly body is receding from earth such that the fractional change in l is 1, then its velocity is

[DCE 2000]

Options:

A) C

B) 3C5

C) C5

D) 2C5

Show Answer

Answer:

Correct Answer: A

Solution:

Δλλ=vc1=vcv=c



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