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  • Smart Learning for All

  • Topic: Convex lens.

  • Can a magnifying glass burn paper?

  • I think you have gone nuts.

  • No.

  • It is possible.

  • What?

  • But how?

  • It is because a magnifying glass is actually a convex lens.

  • A convex lens is thicker in the middle and thinner at the edges.

  • Like a fish?

  • Absolutely.

  • This shape of the convex lens makes the parallel rays of sunlight to refract.

  • Such that they converge or come together at a point.

  • So, when they come together, do they have a party?

  • Please listen.

  • As the rays converge, the concentration of sunlight at that point increases, thus producing heat.

  • This heat starts a fire which eventually causes the paper to burn.

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Subtitles and vocabulary

B2 H-INT US convex lens converge magnifying sunlight burn

Convex Lens - Can a magnifying glass burn paper? | #aumsum

  • 35 1
    AumSum   posted on 2019/04/16
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