A diffraction pattern is produced by a single slit of width 0.5mm with the help of a convex lens of
Channel: Doubtnut
Date: 02/11/2021

A diffraction pattern is produced by a single slit of width 0.5mm with the help of a convex lens of focal length 40cm. If the  wavelength of light used is 5896Å. then the distance of first dark fringe from the axis will be-