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Olympiad workbook

Exam: Olympiad workbook
Subject: NSEP
Chapter: Wave Optics

Olympiad workbook · NSEP · Wave Optics

A slit of width a is illuminated by parallel monochromatic light of...

A slit of width

a

is illuminated by parallel monochromatic light of wavelength

\lambda

. The value of

a

at which the first minimum of the diffraction pattern will form at

\theta=30^{{}^{{}^{\circ}}}

is

Options

A $\lambda / 2$
B $\lambda$
C $2 \lambda$
D $3 \lambda$

Correct answer

C. $2 \lambda$

Step-by-step solution

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