Question

To burn a piece of paper using concave mirror at which place you will keep the paper?

Answer 1

the paper should be kept at the focus. as the sun light converges at a point a lot of heat is generated and the paper starts burning.

hope it is useful!!

Answer 2

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• Concave mirror focus the parallel sun rays at focal point of the mirror.

• So with a small concave mirror we can heat up and burn a paper.