NEET Physics Question - Wave Optics

Assertion (A): In everyday life, we do not encounter diffraction of light in contrast to that for sound.

Reason (R): Diffraction characteristic is not exhibited by all kind of waves.

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:

Assertion (A) is true: Observable diffraction occurs when wavelength is comparable to obstacle size. Light's wavelength is very small (nanometers), so its diffraction is not easily observed in daily life, unlike sound (wavelength in meters).

Reason (R) is false: Diffraction is a fundamental property of all waves, although its prominence depends on the wavelength and obstacle size. Hence, (A) is true, (R) is false.

Rankers Physics

Diffraction of light vs. sound

Solution:

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