When a glass lens with $n = 1.47$ is immersed in a trough of liquid, it looks to be disappeared. The liquid in the trough could be

Question

Dr. Abubacker · Accepted Answer

(c) Glass lens will disappear if $\mu_{L} = \mu_{g}$. Therefore, when a glass lens of refractive index 1.47 is immersed in glycerin whose refractive index is 1.473 (at $20℃$), the glass lens look like disappeared

Q. When a glass lens with $n = 1.47$ is immersed in a trough of liquid, it looks to be disappeared. The liquid in the trough could be

Explanation

Reviewed by Dr. Abubacker

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