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JEE PHYSICS MCQ: WAVE OPTICS

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Understanding +4 | -1

If

\beta_1,

\beta_2

and

\beta_3

are fringe widths for red, green and violet light respectively for the same setup of Young's double slit experiment, then

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Correct option: D

\beta_1>\beta_2>\beta_3

Option D is correct because fringe width is directly proportional to wavelength, and red light has the longest wavelength.

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