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What are polaroids?

by aman in Science at 2017-04-17 16:25:50 got 1 Comments 49 Views
Give their uses also

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aman comment on "What are polaroids?"

Polaroids are thin and large sheets of crystalline polarising material (made artificially) capable of producing plane polarised beams of large cross-section. Few important uses are listed below-
1.Polaroids are used in sunglasses. Such goggles are more efficient than those made of coloured glasses.
2. the windshield of an automobile is made of Polaroid
3. the polarides are used in window panes of a train and especially of an aeroplane.
4. the pictures taken by a stereoscopic camera when seen with the help of polaroid spectacles create three dimensional effect.