Question

what are polaroids ?write their four uses​

Answer 1

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polaroid is a device used to produce the plane polarised light . it consists of a long chain of molecule aligned in a particular direction .

USES:-

1) as sun glasses

2) as Windows in trains and aeroplane

3) in photographic cameras .

4) as objective and eyepieces in microscopes .

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Answer 2

Heya!

Polaroid films are used to produce three - dimensional moving pictures.

• They are used in production and analyzation of plane polarized light.
• They are used to improve colour contrast in old oil paintings.
• They are used in calculators, watches, monitors of laptops which have LCD screens.
• They are used as glass windows in trains and aeroplanes to control the intensity of light.

#Thanks!