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In Young's doubIe sIit experiment one of...

In Young's doubIe sIit experiment one of the sIits is covered with the help of a thin pIate of thickess 4.8 mm . As a resuIt the centraI dright band is shifted to the position of the 30th bright band. Determine the thickness of the pIate required to shift the centraI dright band in the position of 20th bright dand.

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The correct Answer is:
3.2 mm
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