NEET Physics Question - Ray Optics - Refraction by Spherical Surfaces

Assertion (A): A single lens cannot be free from chromatic aberration.

Reason (R): When light passes through single lens dispersion must occur.

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:

Chromatic aberration occurs because the refractive index of a lens material varies with wavelength (dispersion). A single lens always causes dispersion, leading to different focal points for different colors. Thus, both (A) and (R) are true, and (R) explains (A).

Rankers Physics

Chromatic Aberration in Lenses

Solution:

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