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KCET2019PhysicsWave Optics

A transparent medium shows relation between ( i ) and ( r ) as shown. If the speed of light in vacuum is ( c ) the Brewster angle for the medium is

Options

  1. A( 60^ )
  2. B( 30^ )
  3. C( 90^ )
  4. D( 45^ )

Correct answer

A. ( 60^ )

Step-by-step solution

(A) By Brewster's law, ( n = _ p ) Also ( n= i r ) But ( i r = 1 slope ) of given graph ( i r = 1 30^ = 1 1 3 = 3 ) ( _ p = n = 3 ) ( _ p = ⁻¹( 3 )=60^ )

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