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How does the angular separation between ...

How does the angular separation between frings in single-slit diffraction experiment change when the distance of separation between the slit and screen is doubled ?

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The angular separation is given as `theta = lambda//a`, where a is the width of the slit. As angular separation is independent of the distance between slit and screen, it will remain unchanged.
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MODERN PUBLICATION-WAVE OPTICAL-Revision Exercises (Very Short Answer Questions)
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