What are polaroids?how are they used to demonstrate that (A)light waves are transverse in nature?(b)if an unpolarised light wave is incident then light wave will get linearly polarised?
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polaroids are made up of long chain molecules tat are aligned in a particular direction .
(A) since the electric vector is in direction perpendicular to propogation of wave when light wave travels through polaroid so light waves r transverse in nature .
(B) when an unpolarized light is incident on polaroid then the light wave ll get linearly polarised with electric vector oscillating along a direction perpendicular to the aligned molecules . this direction is pass axis of polaroid.
(A) since the electric vector is in direction perpendicular to propogation of wave when light wave travels through polaroid so light waves r transverse in nature .
(B) when an unpolarized light is incident on polaroid then the light wave ll get linearly polarised with electric vector oscillating along a direction perpendicular to the aligned molecules . this direction is pass axis of polaroid.
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