You’re in a room (with no windows) that is lit up by “white” light coming from a light bulb. a. What colors of light are being produced by the light bulb? (Hint: the possible colors are red, green, and blue) b. A toy fire truck in the room appears red. What colors of light is the truck reflecting? What colors of light is the truck absorbing? Explain. c. The walls of the room appear blue. What colors of light are the walls reflecting? What colors of light are the walls absorbing? Explain.
Refraction of Light
Refraction is a change in the direction of light rays when they travel from one medium to another. It is the bending of light when it goes through different media.
Angle of Refraction
Light is considered by many scientists to have dual nature, both particle nature and wave nature. First, Particle nature is one in which we consider a stream of packets of energy called photons. Second, Wave nature is considering light as electromagnetic radiation whereas part of it is perceived by humans. Visible spectrum defined by humans lies in a range of 400 to 700 nm wavelengths.
Index of Refraction of Diamond
Diamond, the world’s hardest naturally occurring material and mineral known, is a solid form of the element carbon. The atoms are arranged in a crystal structure called diamond cubic. They exist in a huge variety of colours. Also, they are one of the best conductors of heat and have a very high melting point.
- You’re in a room (with no windows) that is lit up by “white” light coming from a light bulb.
a. What colors of light are being produced by the light bulb? (Hint: the possible colors are red, green, and blue)
b. A toy fire truck in the room appears red. What colors of light is the truck reflecting? What colors of light is the truck absorbing? Explain.
c. The walls of the room appear blue. What colors of light are the walls reflecting? What colors of light are the walls absorbing? Explain.
2. Someone enters the room from Question #3 and takes out the light bulb. What color does the fire truck appear to be now? What about the walls of the room?
3. Next, someone enters the same room and installs a new light bulb that only produces red light. What color does the fire truck appear to be now? What about the walls of the room? Explain.
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