Okay so I know that when you shine white light into a prism through a light box thing, a rainbow will happen. And if you shine all the colors through a prism, white light will come out the other side. So I have a few questions, please please help!
1. If you shine red light on a triangular prism, what will happen?
2. Why does a rainbow come out of a prism when you shine white light on it?
3. Why were there two rainbows when I put a prism next to a prism that was already been put in the direction of white light?
Thank you SOSOSOSOSO much!!!
1. If you shine red light on a triangular prism, what will happen?
2. Why does a rainbow come out of a prism when you shine white light on it?
3. Why were there two rainbows when I put a prism next to a prism that was already been put in the direction of white light?
Thank you SOSOSOSOSO much!!!
-
To complete Andrew Smith's response, each color travels at a different speed in glass. When all of the colors come in a single beam - which is white light - each color, because it travels at a slightly different speed in glass, refracts (bends) at an angle proportional to its speed in glass, and so separates from the other colors.
But if only red light is present, then that one color bends according to its particular angle, and emerges from the prism at that angle. But since all the light was red, that will be the only color to emerge.
But if only red light is present, then that one color bends according to its particular angle, and emerges from the prism at that angle. But since all the light was red, that will be the only color to emerge.
-
1. REd light comes out.
2. White light is a mixture of all the colours. All the prism does is separate those colours into different places.
3. This only happens if there are two different paths that the light is able to follow.
If ALL the light from the first rainbow passes through the second prism there is still only one rainbow.
2. White light is a mixture of all the colours. All the prism does is separate those colours into different places.
3. This only happens if there are two different paths that the light is able to follow.
If ALL the light from the first rainbow passes through the second prism there is still only one rainbow.
-
Ony red comes out as only red (1 component of white light) enters the prism. No other colours are there.
A rainbow comes out as each colour of light diffracts at a diffent angle, depending on its frequency or wavelength.
A rainbow comes out as each colour of light diffracts at a diffent angle, depending on its frequency or wavelength.