Question

What are polaroids? Write their uses.

Answer 1

Polaroids are artificially made large sheets or large plates and capable of producing a strong beam of polarised light.

Uses:-

1) In sun glasses. Sun glasses fitted with polaroids instead of coloured glasses are more efficient in protecting The Eyes from glare due to reflected light.

2) Wind shield of automobiles. Windscreen fitted with a polaroid as well as headlights of automobiles protect the eyes of the drivers of the automobile from the dazzling light of approaching vehicles.

Answer 2

A polaroids is a metarial in thin plastic sheet that produces a high degree of plane polarization in light passing through it.

i. It use in sunglasses to cut of the glare reflected by horizontal surface.

ii. this glasses are used to view three-dimensional pictures and movies.

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