Assertion: Concave mirror is best suited for use in a solar cooker.

Reason: Concave mirrors converge a large amount of light from the sun into the solar cooker.

Which of the following statements is true?

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Both assertion and reason are true, and the reason is the correct explanation of assertion.

Both assertion and reason are true, and the reason is not the correct explanation of assertion.

The assertion is true, but the reason is False.

The assertion is false, but the reason is True.

answer is A.

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Detailed Solution

Both assertion and reason are true, and the reason is the correct explanation of assertion.
Assertion: Concave mirrors are used in a solar cooker because their concave surface receives the maximum amount of solar radiation. As a result, the sun rays falling on the mirror's surface get concentrated in focus after reflection.
Reason: The container for cooking food is placed at the focus of the spherical reflector, where a huge amount of heat is produced due to the concentration of sun rays. It attains a temperature of about