Q.

Mark the incorrect statement

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a

Light waves do not show the phenomenon of diffraction since we can hear a person who is standing behind a wall but cannot see him

b

 In Young’s experiment, if white light is used instead of monochromatic light, then the central bright fringe is white

c

In Young’s double slit experiment the fringes become indistinct if one of the slits is covered with transparent paper

d

In Young’s experiment fringe width of dark as well as bright fringes are same

answer is C.

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light wave shows diffraction if the object dimension is comparable to the wavelength of light

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