Fraunhoffer Diffraction

Consider Fraunhoffer diffraction pattern obtained with a single slit illuminated at normal incidence. AT the angular position of the first diffraction minimum the phase difference (in radian) between the wavelengths from the opposite edges of the slit is

Consider Fraunhoffer diffraction pattern obtained with a single slit illuminated at normal incidence. At the angular position of the first diffraction minimum the phase difference (in radians) between the wavelets from the opposite edges of the slit is

Consider Fraunhoffer diffraction pattern obtained with a single slit illuminated at normal incidence. At the angular position of the first diffraction minimum the phase difference (in radians) between the wavelets from the opposite edges of the slit is

In Fraunhoffer diffraction, the wavelength incident light perpendicular to slit made double. the distance from the slit to the screen made tripled and if the width of the slit made (3)/(2) times then width of central maximum will be.....

Four times In Fraunhoffer diffraction by single slit having width d. The perpendicular light of wavelength lambda incident on it. The distance between slit and screen is D. If the linear width of central maximum is halve to the width of slit then=.....

A light of wavelength lambda is incident on an object of size b. If a screen is at a distance D from the object. Identify the correct condition for the observation of different phenomenon a) if b^(2)=D lambda , Fresnel diffraction is observed b) if b^(2)gtgtD lambda , Fraunhoffer diffeaction is observed c) b^(2)ltltD lambda , Fraunhoffer diffraction is observed d) b^(2)gtgtD almbad , the approximation of geometrical optics is applicable