Polaroid filters are used for?

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1. Polaroid filters are used for?

Controlling glare and light intensity, such as in sunglasses or vehicle windows

Viewing three-dimensional images or pictures

Studying certain optical properties of materials

All of the above

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Polaroids selectively block light with a particular polarisation, giving them varied uses — reducing glare, enabling 3D viewing, and studying how materials interact with polarised light.