Is it true concave lenses are used in flashlights to magnify the light produced by the source?

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True

False

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Detailed Solution

The above statement is True.
Concave lenses are used in flashlights to exaggerate the flash produced by the source. The light rays fall off on the hollowed side of the lens, the light rays then diverge on the other side of the lens, and the lighthearted rays diverge upon the supplementary side. This increases the radius of the open source and hence provides a wider beam.

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