Question

Can anyone tell me how to make a prism (rainbow) on a surface with water and torch? No stupid answers.

Answer 1

When light goes through a glass of water – it also splits into a rainbow.

To get ready – take a piece of paper and cut a slot into the middle of it. Tape this onto the side of a smooth/clear drinking glass so that the sun’s rays can pass through the opening onto the SURFACE of the water in the glass.

You will need to do this on a very sunny day (or try a darkened room with a strong direct light source.)

Make sure that the glass of water is VERY FULL. Place the glass on a white floor or white piece of paper, making sure the sun’s rays are shining through the slot in your paper and hitting the surface of the water.

You should see a mini-rainbow appear below the glass!



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Answer 2

Just put some insoluble colours of the rainbow in the water......... I know I am the brainliest but please don't mark me