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Manipal MET2018PhysicsWave Optics

In Young's double slit experiment, the intensity of light coming from one of the slits is double the intensity from the other slit. The ratio of the maximum intensity to the minimum intensity in the interference fringe pattern observed is

Options

  1. A34
  2. B40
  3. C25
  4. D38

Correct answer

A. 34

Step-by-step solution

aligned & I_ I_ = ( 2 I + I )^2 ( 2 I - I )^2 = ( 2 +1 2 -1 )^2 & = [ ( 2 +1)( 2 +1) ( 2 -1)( 2 +1) ]^2 & = ( 2+1+2 2 2-1 )^2 & = 9+8+12 2 1 34 aligned

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