MCQ
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 the opposite face is $4 \mathrm{~cm}$. Then the refractive index of the material of the cube is
  • A
    $2.0$
  • B
    $2.5$
  • C
    $1.6$
  • $1.5$

Answer

Correct option: D.
$1.5$

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