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MHT CET202121 Sep 2021Morning ShiftPhysicsRay OpticsActual

A glass cube of length 24 ~cm has a small air bubble trapped inside. When viewed normally from one face it is 10 ~cm below the surface. When viewed normally from the opposite face, its apparent distance is 6 ~cm . The refractive index of glass is

Options

  1. A1.50
  2. B1.40
  3. C1.45
  4. D1.55

Correct answer

A. 1.50

Step-by-step solution

Let x be the real depth from first surface 10= x When viewed from opposite face 6= 24-x By solving, =1.5

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