Optics Question 237
Question: If the shift of wavelength of light emitted by a star is towards violet, then this shows that star is
[RPET 1996; RPMT 1999]
Options:
A) Stationary
B) Moving towards earth
C) Moving away from earth
D) Information is incomplete
Show Answer
Answer:
Correct Answer: B
Solution:
Shifting towards ultraviolet region shows that apparent wavelength decreased.
Therefore the source is moving towards the earth.
