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KCET2019PhysicsWave Optics

In Young's double slit experiment using monochromatic light of wavelength ( ), the intensity of light at a point on the screen where path different is ( ) is ( K ) units. The intensity of light at a point where path difference ( 3 ) is

Options

  1. A( 4 ~K )
  2. B( K )
  3. C- ( 2 ~K )
  4. D( K 4 )

Correct answer

D. ( K 4 )

Step-by-step solution

( x= 2 ) ( 3 = 2 ) ( ) Phase difference, ( = 2 3 ) Intensity, ( I=I₀ ² ) ( =K ² ( 2 3 )=K ( -1 2 )² ) ( I= K 4 )

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