A mixture of 450-nm and 900-nm light is incident on a multiple-slit system. Which of the following is true?
A) All lines of the 900-nm light coincide with lines of the 450-nm light
B) All lines of the 450-nm light coincide with lines of the 900-nm light
C) All lines of the 800-nm light coincide with lines of the 450-nm light
D) None of the lines of the 450-nm light coincide with lines of the 900-nm light
E) All of the lines of the 450-nm light coincide with lines of the 900-nm light

Question

Quizplus · Accepted Answer

The lines of the 450-nm light coincide with lines of the 900-nm light because the ratio of the wavelengths is 2:1, which means that the lines of the 450-nm light will be twice as close together as the lines of the 900-nm light.

A Mixture of 450-Nm and 900-Nm Light Is Incident on a Multiple-Slit