Q. Angular width $(\beta)$ of central maximum of a diffraction pattern on a single slit does not depend upon
A) Distance between slit and source
B) Wavelength of light used
C) Width of the slit
D) Frequency of light slit
Explanation
(a) For single slit diffraction pattern $d\sin\theta = \lambda\ (d =$ slit width)
Angular width $= 2\theta = 2\sin^{- 1}\left( \frac{\lambda}{d} \right)$
It is independent of $D,i.e.,$ distance between screen and slit
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.