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Earn 100

The centre of interference pattern
(a)is always bright
(b)is always dark
(c)may be bright or dark
(d)is changed continuously

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Important Questions on Interference and Diffraction
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To produce destructive interference at a point, the path difference between two waves meeting at that point should be

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What is the condition of phase difference for destructive interference?

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In the Young's double slit experiment, if the phase difference between the two waves interfering at a point is $\phi,$ the intensity at that point can be expressed by the expression

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If path difference between two interfering waves arriving at a point is zero, then the point will

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If the amplitude of the two interfering waves are not equal, then the dark point formed in the interference pattern will have intensity.

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In an interference experiment, minimum intensity is obtained when the phase difference of superimposing waves is $(\mathrm{n}=1,$ $2,3 \ldots \ldots)$

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Which of the following pairs denotes coherent sources?

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Two independent monochromatic sources of light are
