Question

Assertion : A ray of light entering from glass to air suffers change in frequency.
Reason : Velocity of light in glass is more than that ni air.
A. If both, Assertion and Reason are true and the Reason is the correct explanation of the Assertion.
B. If both, Assertion and Reason are true but Reason is not a correct explanation of the Assertion.
C. If Assertion is true but the Reason is false.
D. If both, Assertion and Reason are false.

Answer 1

Correct Answer - D
Both, the Assertion and Reason are false. Frequency is that characteristic property of light which does bot change when light goes from one medium to another. So assertion is false. As glass is a denser medium in comparision to air, velocity of light in glass is less than that in air.