Question

Explain the use of concave mirror as solar concentrators with the help of a raydiagram.

Answer 1

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1. Concave mirror converge the rays of light falling on it.
2. so they are used as solar concentrators in solar cookers, heaters etc.
3. The point where all the reflected rays converge is called as focus.
4. So substance to be heated , should be placed at focus.

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Answer 2

The use of a concave mirror as solar concentrators is as follows:

• Since solar concentrators take a large area of sunlight directing it to a particular spot, concave mirrors help in doing so.

• It helps in converging the light rays at a specific point called the focus.

• At the focus of the mirror, the substance to be heated is placed.