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The fringe width in a biprims experiment...

The fringe width in a biprims experiment is 0.32 mm, when red light of waelength `6400Å` is used. If source of blue light of wavelength `4000Å` is used with the same setting, then the fringe width will

A

decrease by 64%

B

decrease by 40%

C

decrease by 75%

D

decrease by 37.5%

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The correct Answer is:
D

NA
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TARGET PUBLICATION-INTERFERENCE AND DIFFRACTION-CRITICAL THINKING
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