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List the uses of polaroids....

List the uses of polaroids.

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Uses of polaroids
1. Polaroids are used in goggles and cameras to avoid glare of light.
2. Plaroids are useful in three dimensional motion pictures i.e. in holography.
3. Polaroids are used to improve constrast in ole oil paintings.
4. Polaroids are used in optical stress analysis.
5. Polaroids are used as window glasses to control the intensity of incoming light.
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