Central fringe obtained in diffraction pattern due to a single slit-

In a single slit diffraction pattern

In a single slit diffraction pattern

Calculate the angular width of 2^(nd) secondary maximum and fourth dark fringe in the diffraction pattern obtained due to a single slit of width 10^(-5) m illuminated by a wavelength of light 541 nm.

(i) Define coherent source. (ii) What will be the effect on the width of the central bright fringe in the diffraction pattern of a single slit if : (1) Monochromatic light of smaller wavelength is used. (2) Slit is made narrower.

The condition for obtaining maximum in the diffraction pattern due to a single slit is

Find the angular width of the central maxima of Fraunhofer diffraction pattern due to single slit.