Question

An increase in which property would cause an electromagnetic wave's energy
to increase?
A. Mass
B. Speed
C. Wavelength
D. Amplitude

Answer 1

Answer: C. wavelength

Explanation: Frequency = speed of light/wavelength. The frequency of an electromagnetic wave increases as wavelength decreases. As wavelength decreases (and frequency increases) energy increases.

Picture for reference:

Answer 2

Answer:

D

Explanation: