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JEE PHYSICS MCQ: WAVE OPTICS

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Application +4 | -1

A beam of monochromatic light of wavelength

5.82 \times 10^{-7} \mathrm{~m}

falls normally on a glass wedge with the wedge angle of 20 second of an arc. If the refractive index of glass is

1.5,

find the number of dark interference fringes per

\mathrm{cm}

of the wedge length:

View answer and explanation

Correct option: B

5 per cm

Option B (5 per cm) is correct because it correctly calculates the number of dark fringes per cm based on the given parameters.

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