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Question: Answered & Verified by Expert
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
PhysicsRay OpticsAIIMSAIIMS 2016
Options:
  • A $2.0$
  • B $1.5$
  • C $1.6$
  • D $2.5$
Solution:
2748 Upvotes Verified Answer
The correct answer is: $1.5$
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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