NEET UG PHYSICS MCQ: WAVE OPTICS

1 Easy

1 of 1

Application +4 | -1

A glass plate

12 \times 10^{-3} \mathrm{~mm}

thick is placed in the path of one of the interfering beams in a Young's double slit interference arrangement using monochromatic light of wavelength

6000 \mathop A\limits^ \circ

. If the central band shifts a distance equal to width of 10 bands. What is the thickness (in

\mu \mathrm{m}

) of the plate of diamond of refractive index

2.5

that has to be introduced in the path of second beam to bring the central band to original position?

View answer and explanation

Correct option: A

Option A (4) is correct because the optical path difference introduced by the glass plate must be compensated by the diamond plate.

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