Give reasons:
Concave mirrors are used in solar devices.

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Solution

Concave mirrors are used in solar devices to collect heat and radiations.Heat radiations from the sun coming from infinity are brought to focus by concave mirror in its focal plane.

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Similar questions

Give reasons:

(1) You cannot enjoy watching a movie from a very short distance from the screen in a cinema hall.

(2) A simple microscope is used by watch repairers.

(3) A concave lens is used to correct myopia.

(4) In gold age bifocal lens is necessary for some person.

(5) Concave mirrors are used in solar devices.

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