1. This experiment must be done on a bright sunny day.
2. Find a nice spot of sunlight. Get ready with a convex lens and a piece of paper.
3. Try to focus the sunlight on the paper. You must be patient enough because the glare of the sunlight is really hurt your eyes.
4. After a while, you can see the smoke started to form on the paper.
5. I was trying to write a word on a paper using the making flame.
6. At last, the paper was burned in a word of "BAKAR"..
In a convex lens (sometimes called a positive lens), the glass (or plastic) surfaces bulge outwards in the center giving the classic lentil-like shape. A convex lens is also called a converging lens because it makes parallel light rays passing through it bend inward and meet (converge) at a spot just beyond the lens known as the focal point.
Convex lenses are used in things like telescopes and binoculars to bring distant light rays to a focus in your eyes.
Photo: A convex lens makes light rays converge (come together) at the focal point or focus. The distance from the center of the lens to the focal point is the focal length of the lens.
AT THIS FOCAL POINT, THE SUN RAYS WERE FOCUSED AND THE HEAT BURNT THE PAPER IN THE EXPERIMENT.
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