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MHT CET202020 Oct 2020Morning ShiftPhysicsRay OpticsActual

A light travels through water in the beaker. The height of water column is 'h'. Refractive index of water is ' _ w ^ . If C is velocity of light in air, the time taken by light to travel through water will be

Options

  1. A_ w h C
  2. Bh _ w C
  3. ChC _ w
  4. Dh _ w C

Correct answer

A. _ w h C

Step-by-step solution

Velocity = distance time time = distance velocity = h c _ w _ w = c v v = c _ w

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