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  • . A metal plate is lying at the bottom of a tank full of a transparent liquid. Height of tank is <img alt="\mathrm{100\ cm}" src="https://entrancecorner.oncodecogs.com/gif.latex?%5Cmathrm%7B100%5C%

. A metal plate is lying at the bottom of a tank full of a transparent liquid. Height of tank is \mathrm{100\ cm} but the plate appears to be at \mathrm{45\ cm} above bottom. The refractive index of liquid is:

Option: 1

1.00


Option: 2

1.53


Option: 3

1.81


Option: 4

1.32


Answers (1)

best_answer

Real depth of plate, \mathrm{H=100\ cm}
Apparent depth of plate, \mathrm{h=100-45=55\ cm}
\mathrm{\therefore } Refractive index of fluid \mathrm{=\frac{\mathrm{H}}{\mathrm{h}}=\frac{100}{55}=1.81}

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Pankaj

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