Physics

Problem

Setup A uses light of wavelength

500\,\text{nm}

and slits separated by

0.25\,\text{mm}

. For the same screen distance, the third bright fringe produced by setup A appears at exactly the same location as the fourth bright fringe produced by setup B, which uses light of wavelength

650\,\text{nm}

. What is the slit separation in setup B? a)

0.24\,\text{mm}

0.49\,\text{mm}

0.43\,\text{mm}

0.33\,\text{mm}

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