Umakant biswal
Last Activity: 8 Years ago
@ shreyas
ANGULAR DISPERSION – a measure of the angular separation of light rays of different wavelength or color traversing a prism or diffraction grating, equal to the rate of change of the angle of deviation with respect to the change in wavelength.
dispersive power – the power of a transparent medium to separate different colors of light by refraction as measured by the difference in refractivity for two specified widely differing wavelengths divided by the refractivity at some specified intermediate wavelength.
IT CAN BE MEASURED BY CAUCHY’S EXPRESSION .
HOPE YOU UNDERSTOOD IT .,.