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Light of wavelength 6000 Å from a distan...

Light of wavelength `6000 Å` from a distance source falls on a slit `0.5` mm wide. The distance between two dark bands on each side of the central bright band of the diffraction pattern observed on a screen placed at a distance 2m from the slit is

A

`1 . 2 nm`

B

`2 . 4 nm`

C

`3 . 6 nm`

D

`4 . 8 nm`

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Knowledge Check

  • The red light of wavelength 5400 Å from a distant source falls on a slit 0.80 mm wide. Calculate the distance between the first two dark bands on each side of the central bright band in the diffraction pattern observed on a screen place 1.4m from the slit.

    A
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    B
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    D
    5 mm

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    A
    (a) `1.2cm`
    B
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    C
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    D
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