NEET Physics Question - Ray Optics

Assertion (A): A rectangular glass slab produces no deviation and no dispersion.

Reason (R): Dispersive power of glass slab is zero.

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:

A rectangular glass slab causes no net angular deviation but does produce lateral shift. It causes dispersion for polychromatic light. So (A) is false. Glass, being a dispersive medium, has a non-zero dispersive power. So (R) is false. Thus, both (A) and (R) are false.

Rankers Physics

Rectangular Glass Slab Optics

Solution:

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