Dispersion by prism and combination of prism

Dispersion OF Prism

For two given statements : (1) A prism can produce a minimum deviation D in a light ray. If three such prism are combined, the minimum deviation that can be obtained with this combination is 3 D. (2) A combination of two prisms produce deviation as well as dispersion when monochromatic light is incident upon it.

Dispersion Of Light Through Glass Prism|Spectrum Of White light|Dispersion Of Light |Cause Of Dispersion Of Light|Re-Combination Of Spectrum Colours To Give White Light|Questions|Home Work|Summary

Dispersion Of Light |Prism

In the visible region the dispersive powers and the mean angular deviations for crown and flint glass prisms are omega', omega' and d, d respectively. The condition for getting deviation without dispersion when the two prisms are combined is

When a white light passes through a hollow prism, then there is dispersion but no deviation deviation but no dispersion no dispersion and no deviation dispersion and deviation both

Dispersion by a prism||Dispersion without deviation||Deviation without dispersion||Examples on dispersion

Two prisms A and B is contact with each other The dispersive power of A nd B is 0.04 and 0.03 respectively.The angular dispersion produced by 'A' is 8 .The angular dispersion produced by the combination if the combination does not produces a net deviation is