Q 4 A monochromatic light of wavelength is incident normally

Last updated: 6/9/2023

Q 4 A monochromatic light of wavelength is incident normally on a narrow slit of width a to produce a diffraction pattern on the screen placed at a distance D from the slit With the help of a relevant diagram deduce the conditions for maxima and minima on the screen Use these conditions to show that angular width of central maxima is twice the angular width of secondary maxima U Foreign II 2017