A single slit of width a is illuminated by a monochromatic light of wavelength 600 ~nm. The value of ' a ' for which first minimum appears at θ=30^(°) on the screen will be:

Optics: JEE Main 2023 Physics question

JEE Main 2023 · 15 Apr, Morning shift · Q8403

JEE Main 202315 Apr, Morning shiftPhysicsMediumOptics190× since 2002

A single slit of width

a

is illuminated by a monochromatic light of wavelength

600 \mathrm{~nm}

. The value of '

a

' for which first minimum appears at

\theta=30^{\circ}

on the screen will be :