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

In a Young's double slit experiment, the source is white light. One of the holes is covered by a red filter and another by a blue filter. In this case

A

there shall be alternate interference patterns of red and blue

B

there shall be an interference pattern for red distinct from that for blue

C

there shall be no interference fringes

D

there shall be an interference pattern for red mixing with one for blue

Text Solution

Verified by Experts

The correct Answer is:
C
For the interference pattern to be formed on the screen the sources should be coherent and emits lights of same frequency and wavelength
In a Young's double slit experiment, when one of the holes is covered by a red filter and another by a blue filter. In this case due to filteration only red and blue lights are present. In YDSE monochromatic light is used for the formation of fringes on the screen Hence, in this case there shall be no interference fringes.
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Young's Double Slit Experiment (YDSE)

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Knowledge Check

  • In Young's double slit experiment:

    A
    The interference pattern has a number of equally spaced bright and dark bands
    B
    The interference pattern has a central bright maximum which is twice as wide as other maximum
    C
    Intensity of all bright bands is same
    D
    Both (1) & (3)

  • In Young's double slit experiment

    A
    only interference occurs
    B
    only diffraction occurs
    C
    both interference and diffraction occurs
    D
    polarisation occurs

  • A Young's double slit experiment is performed with white light.

    A
    The central fringe will be white
    B
    There will not be a completely dark fringe.
    C
    The fringe next to the central will be red
    D
    The fringe next to the central will be violet

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