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In Young's double slit experiment, the i...

In Young's double slit experiment, the intensity of light at a point on the screen where the path difference is `lambda=l`. The intensity of light at a point where the path difference becomes `lambda//3` is

A

`K//4`

B

`K//3`

C

`K//2`

D

`K`

Text Solution

Verified by Experts

The correct Answer is:
A
`K=I_(0)cos^(2)(pi)rarr(1)`
`I=I_(0)cos^(2) ((pi x)/(3))rarr (2) theta = (2pi x)/(3)`
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Knowledge Check

  • In Young's double-slit experimetn, the intensity of light at a point on the screen, where the path difference is lambda ,is I . The intensity of light at a point where the path difference becomes lambda // 3 is

    A
    `(I)/(4)`
    B
    `(I)/(3)`
    C
    `(I)/(2)`
    D
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  • In Young's double slit experiment the intensity of light at a point on the screen where the path difference is lambda is K . The intensity of light at a point where the path difference is (lambda)/(3) [ lambda is the wavelength of light used ] is

    A
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    B
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    C
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    D
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  • In Young's double slit experiment the intensity of light at a point on the screen where the path difference lambda is K. The intensity of light at a point where the path difference is (lambda)/(6) [ lambda is the wavelength of light used] is

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