Answers

2016-03-01T11:26:37+05:30
the convex lens creates focus and therefore makeĀ all the light falling on it to be focused on one single place. if lots of heat fall on one place, it burns the paper.
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if helpful plz mark as brainliest ans
2016-03-01T13:49:48+05:30
Convex lens is used in magnifying glass so you can adjust the perfect focus of sunlight on paper
and it will start burning
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