A jar of height h is filled with a transparent liquid of refractive index µ (Fig. 9.6). At the centre of the jar on the bottom surface is a dot. Find the minimum diameter of a disc, such that when placed on the top surface symmetrically abo

Question

A jar of height h is filled with a transparent liquid of refractive index µ (Fig. 9.6). At the centre of the jar on the bottom surface is a dot. Find the minimum diameter of a disc, such that when placed on the top surface symmetrically about the centre, the dot is invisible.

Quantrex Academy · Accepted Answer

Correct answer: B. 2h ² -1

Correct Option is : (B) 2h ² -1

A jar of height h is filled with a transparent liquid of refractive index µ (Fig. 9.6). At the centre of the jar on the bottom surface is a dot. Find the minimum diameter of a disc, such that when placed on the top surface symmetrically about the centre, the dot is invisible.

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