NEET Physics Question - Ray Optics - Refraction by Plane Surfaces

Assertion (A): Wavelength of light changes on changing medium.

Reason (R): Light ray always deviates from its path when refracted.

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

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

(3) (A) is true but (R) is false

(4) Both (A) and (R) are false

Solution:

When light enters a new medium, its speed and wavelength change, while frequency remains constant. Light deviates upon refraction unless it strikes normally. Both A and R are true, but R describes a characteristic of refraction, not the cause of wavelength change.

Rankers Physics

Assertion and Reason for Wavelength Change and Light Deviation

Solution:

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