JEE PHYSICS MCQ: WAVE OPTICS

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Application +4 | -1

In Young’s double slit experiment, when violet light of wavelength

4358\mathop \mathrm{A}\limits^ \circ

is used, the 84 fringe are seen in the field of view, but when sodium light of certain wavelength is used, then 62 fringes are seen in the field of view, the wavelength of sodium light is

View answer and explanation

Correct option: B

5904\mathop \mathrm{A}\limits^ \circ

Option B (

5904\mathop \mathrm{A}\limits^ \circ

) is correct because the fringe width is inversely proportional to the wavelength, and the field of view remains the same.

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