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Which of the following objects can set a piece of paper on fire in the presence of sunlight?1) double concave lens2) convex lens3) convex mirror4) concave lens
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23 votes
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Which of the following objects can set a piece of paper on fire in the presence of sunlight?1) double concave lens2) convex lens3) convex mirror4) concave lens

User Ariaramnes
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1 Answer

18 votes
18 votes

The correct answer is (2)

Convex lenses are used to converge the sunlight rays to a point, and therefore it is used to burn a piece of paper in the presence of sunlight.

User Lars Andreas Ek
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