Which of the following statements is true about the speeds of the various colors of light in glass?
A) All colors of light have the same speed in glass.
B) Violet has the highest speed, red the lowest.
C) Red has the highest speed, violet the lowest.
D) Green has the highest speed, red and violet the lowest.
E) Red and violet have the highest speed, green the lowest.

Question

Quizplus · Accepted Answer

Different colors of light have different wavelengths and frequencies, which cause them to travel at different speeds in a medium such as glass. In general, violet light has a shorter wavelength and higher frequency than red light, which causes it to slow down more as it enters a medium. Therefore, red light has the highest speed and violet light has the lowest speed in glass. Green light falls somewhere in between red and violet.

Which of the Following Statements Is True About the Speeds