Optics Question 724

Question: The wavelength of light diminishes $ \mu $ times ( $ \mu =1.33 $ for water) in a medium. A diver from inside water looks at an object whose natural colour is green. He sees the object as

[CPMT 1990; MNR 1998]

Options:

A) Green

B) Blue

C) Yellow

D) Red

Show Answer

Answer:

Correct Answer: A

Solution:

Colour of light is determined by its frequency and as frequency does not change, colour will also not change and will remains green.



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