Question

why are concave mirrors used in solar devices​

Answer 1

Answer:

Concave mirrors are used in solar devices. This is because they are the only type of mirrors that reflect sunlight to a single focal point. ... Concave mirrors absorb all the incident light and reflect it to a single focal point. This reflected light is very powerful because it carries a lot of thermal energy.

Answer 2

Because concave mirrors are the only mirrors that reflect sunlight into single focal point. Thats why, they are used in solar devices such as solar cookers, solar water heaters and solar cells etc.

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