Question

If you pass a red laser light through a prism , will it show dispersion? Explain

Answer 1

ya
The reason that this happens is because laser light is only one color of light, and light from your flashlight is all different colors of light. This probably sounds pretty weird, but let me explain. There are lots of different colors of light. Just like with different colors of paint, you can mix them together to get other colors. It's just that light colors mix differently than paint colors. If you mix all of the colors of light together, you get white light (like the light from your flashlight). 

Prisms bend different colors different amounts. So when you shine a flashlight in, all of the different colors bend differently and get separated. (This is how you get a rainbow - by spreading the colors apart.) Lasers, on the other hand, are only one color. Some of them are only red and some of them are only green, but they're only that color. So when you shine a laser through a prism, there's nothing to be separated, and the light stays together. One thing that I think is pretty interesting to see is if you shine two different colors of lasers through a prism. Then the two laser beams spread apart from each other, but each one stays together with its own color. 

Hope this answers your question! 

Answer 2

Hey mate here is your answer

No, if we pass red light it won't show dispersion as only white light gets dispersed when passed through a prism.


Hope it helps...