Question

Large _________ mirrors are used to concentrate sunlight to produce heat in solar furnaces

Answer 1

Large $\bf{concave\: mirror}$ are used to concentrate sunlight to produce heat in solar furnaces.

When a beam of light parallel to principle axis strikes with surface of a concave mirror , it meet at a fixed point on a principle axis. This point is not other than focus. In focus light converge and produce heat energy. Due to this reason Concave mirror is also known as converging mirror. A best application of concave mirror is solar cooker. It capable to cook food because concave mirror concentrates and produce heat energy .

Answer 2

Answer:

concave

Explanation:

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