Polaroid glass is used in sun glasses because
(a) it reduces the light intensity to half on account of polarisation
(b) it is fashionable
(c) it has good colour
(d) it is cheaper
The correct option is (a) it reduces the light intensity to half on account of polarisation.
Explanation:
Polaroid glass is used in sun glasses because it reduces the light intensity to half on account of polarisation.
