Three different lasers are emitting steady beams of light. Each beam consists of countless copies a single original photon of light. However, not all colors can be emitted by a laser. Which of the following choices is possible for these three lasers?
A. yellow, green, and blue light
B. green, blue, and white light
C. blue, white, and yellow light
D. white, yellow, and green light
Answer:A
Three different lasers are emitting steady beams of light. Each beam consists of countless copies a single original photon of light. However, not all colors can be emitted by a laser. Which of the following choices is possible for these three lasers?
A. yellow, green, and blue light B. green, blue, and white light C. blue, white, and yellow light D. white, yellow, and green light