Assertion :In Young's experiment, the fringe width for dark fringes is equal to that for white fringes. Reason: In Young's double slit experiment the fringes are performed with a source of white light, then only black and bright fringes are observed.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Both Assertion and Reason are incorrect

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Solution

The correct option is C Assertion is correct but Reason is incorrect
In Young's experiments, fringe width of dark and white fringes are equal. If white light is used as source, coloured fringes are observed representing bright band of different colours.

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