When a light wave is reflected at the surface of an optically denser medium, then the change in the phase is 2n rad 1/4

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When A Light Wave Is Reflected At The Surface Of An Optically Denser Medium Then The Change In The Phase Is 2n Rad 1 4 1 (33.72 KiB) Viewed 29 times

When a light wave is reflected at the surface of an optically denser medium, then the change in the phase is 2n rad 1/4 rad nrad 1/2 rad To obtain a greater separation between the interference fringes of a diffraction grating, the number of slits per unit length is constant number of slits per unit length is increased distance of the slits should be increased distance of the slits should be decreased оо The single-slit diffraction pattern has a bright central maximum and a number of maxima on either side. Which changes to the apparatus will decrease the fringe spacing? Increasing the distance between the slit and the screen Decreasing the slit width Increasing the slit width Increasing the wavelength of the light оо ооо The reason for using two slits in a Young's Double Slit experiment is to create a path difference allow separate passage for frequency and wavelength double the intensity provide two coherent light sources