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In a Young's double slit experiment the intensity of light when slit is at distance from central is I. What will be the intensity at the distance of slit is 6 ?

Options

  1. AI 6
  2. BI 12
  3. C3 4 I
  4. DI 8

Correct answer

C. 3 4 I

Step-by-step solution

As, = 2 x = 2 =2 I=I₁+I₂+2 I₁ I₂ =I^ +I^ +2 I^ 2 =2 I^ +2 I^ =4 I^ When x= 6 , then = 2 6 = 2 6 I₁=I^ +I^ +2 I^ I^ 2 6 I₁=2 I^ +2 I^ (1 / 2)I₁=3 I^ I₁ I = 3 I^ 4 I^ = 3 4 or I₁= 3 4 I

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