State; (a) the difference between plane polarized light and ordinary light; (b) two uses of polaroids.
Explanation
(a) In plane polarized light the vibration of the particles are confirmed to a single plane while in ordinary light, the particles vibrate in all planes perpendicular to the direction of propagation of the wave. (b) Uses of polaroids are: — stress analysis — measurement of concentration of sugar solution — used to eliminate sun glare — used in sun glasses to reduce the intensity of sunlight
