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In Young's double slit experiment the in...

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

A

`K//4`

B

`K//3`

C

`3K//4`

D

`K`

Text Solution

Verified by Experts

The correct Answer is:
C
`K = I_(0)cos^(2)(pi)rarr(1) , I = I_(0)cos^(2)((pi)/(6))rarr(2)`
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In a Young's double slit experiment , the intensity of light at a point on the screen where the path difference is lambda is k units. Find the intensity at a point where the path difference is (a) (lambda)/(4) (b) (lambda)/(3) and (c) (lambda)/(2)

Knowledge Check

  • 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
    K / 4
    B
    K / 3
    C
    K / 2
    D
    K

  • 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
    (a) `l/4`
    B
    (b) `l/3`
    C
    (c) `l/2`
    D
    (d) `l`

  • 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
    `I`

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