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.

For more educational videos please visit http://www.SmartLearningforAll.com

Also, don't forget to subscribe to our YouTube channel.