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AIIMS 2016

Exam: AIIMS
Year: 2016
Subject: Physics
Chapter: Ray Optics

AIIMS 2016 · Physics · Ray Optics

A transparent cube of 15 ~cm edge contains a small air bubble. Its...

A transparent cube of

15 \mathrm{~cm}

edge contains a small air bubble. Its apparent depth when viewed through one face is

6 \mathrm{~cm}

and when viewed through opposite face is

4 \mathrm{~cm}

. The refractive index of material of cube is

Options

A $2.0$
B $1.5$
C $1.6$
D $2.5$

Correct answer

B. $1.5$

Step-by-step solution

Here, real depth,

x=15 \mathrm{~cm}

apparent depth,

y=6+4=10 \mathrm{~cm}

\mu=\frac{x}{y}=\frac{15}{10}=1.5

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