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Directions : In the following questions,...

Directions : In the following questions, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as.
Assertion (A): Refractive index of glass with respect to air is different for red light and violet light.
Reason (R): Refractive index of a pair of media depends on the wavelength of light used.

A

Both A and R are true and R is the correct explanation of A.

B

Both A and R are true but R is NOT the correct explanation of A.

C

A is true but R is false.

D

A is false and R is True.

Text Solution

Verified by Experts

The correct Answer is:
A
Refractive index of any pair of media is inversely proportional to wavelength of light.
Hence, `lamda_v` < `lamda_r`
so, `mu_r` < `mu_v`
where`lamda_v`, and`lamda_r` are the wavelengths of violet and red light. `mu_v` and `mu_r` are refractive index of violet and red light.
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