Question

The real depth of rod in a liquid is 2d and it's apparent height is 60 percent of real depth. Find it's refractive index.

Answer 1

Answer:

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Explanation:

The refractive index of the liquid w.r.t air is 1.67.

Explanation:

Given that,

Depth = 2d

The apparent depth is 60℅ of that of real depth.

Apparent depth

The apparent depth is equal to the real depth divided by the refractive index of the medium .

The apparent depth is defined as,

The  refractive index of the liquid w.r.t air

Where, d = real depth

d' = apparent depth

Put the value of d and r into the formula

Hence, The refractive index of the liquid w.r.t air is 1.67.