Transverse nature of light

Experimental Verification: Transverse nature of light.

Here, an unpolarized light passes through Polaroid P. It is found that the intensity of the transmitted light through P is reduced to half the incident light. Now, when another Polaroid A is placed with its axis parallel to the axis of P. There is no change in intensity but on rotating the Polaroid the intensity of light decrease and becomes zero.

                It shows that when the light passes through P, it produces light parallel to its axis but when that light is passed through Polaroid A with axis perpendicular to it, light is completely blocked.

                Hence, in conclusion we can say that , the Polaroid A produced a plane polarized light. Hence, light is a transverse wave.