NEET Physics Question - Ray Optics

Assertion (A): When white light passes through a prism, deviation of violet light is more than green light.

Reason (R): In a prism average deviation is measured as deviation of yellow light.

Both (A) & (R) are true and the (R) is the correct explanation of the (A)

Both (A) & (R) are true but the (R) is not the correct explanation of the (A)

(A) is true but (R) is false

Both (A) and (R) are false

Solution:

Violet light has the highest refractive index in a prism, so it deviates most, hence (A) is true. Yellow light is generally used for average deviation calculations in dispersion, so (R) is true. However, (R) does not explain (A).

Rankers Physics

Light Deviation in a Prism

Solution:

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