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JEE PHYSICS MCQ: WAVE OPTICS

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Understanding +4 | -1

In a single slit diffraction pattern with slit width

a

and wavelength of light

\lambda

, find the angular position of first minima if screen distance is

D(D \gg a)

View answer and explanation

Correct option: A

\frac{\lambda}{a}

Option A (

\frac{\lambda}{a}

) is correct because the first minima in single-slit diffraction occurs at

\sin \theta = \frac{\lambda}{a}

.

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