Focus 1A #3

[Sophia Olender 2J]

The question states, "Which of the following happens when the frequency of electromagnetic radiation decreases? Explain your reasoning." I'm a little confused on part a), which says, "The speed of the radiation decreases." Is speed the same thing as frequency? Wouldn't a faster wave have a higher frequency?

[Rohita Thammineni 2D]

Speed is not the same thing as frequency, since the speed of light = (the frequency of the light)(the wavelength of the light). Since the speed of light is constant (3.00 x 10^8 m/s), Option A is wrong since the speed of the radiation can neither increase nor decrease. A higher frequency can only be caused by a shorter wavelength, which would lead to a higher energy since E=hv.