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A glass prism of refractive index 1.5 is immersed in water (refractive index 4 3 ) as shown in figure. A light beam incident normally on the face A B is totally reflected to reach the face B C , if

Options

  1. A> 5 9
  2. B> 2 3
  3. C> 8 9
  4. D> 1 3

Correct answer

C. > 8 9

Step-by-step solution

For total internal reflection on face A C > critical angle (C) and C aligned & 1 w_ _g & _w _g 4 3 3 2 & 8 9 . aligned

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