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KVPY2011PhysicsRay Optics

A student sees the top edge and the bottom center C of a pool simultaneously from an angle above the horizontal as shown in the figure. The refraction index of water which fills up to the top edge of the pool is 4 / 3 . If h / x=7 / 4 then is

Options

  1. A2 7
  2. B8 3 45
  3. C8 3 53
  4. D8 21

Correct answer

C. 8 3 53

Step-by-step solution

1 i = r (90- )= 4 3 r r = x 2 ~h = 4 7 2 = 2 7 r = 2 53 = 4 3 2 53 = 8 3 53

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