Question

the electromagnetic waves with the highest energy are _.
ultraviolet waves
infrared waves
sound waves
gamma rays.

Explanation:

Among electromagnetic waves, gamma - rays have the shortest wavelength and highest frequency. According to the energy - frequency relationship $E = h
u$ (where $E$ is energy, $h$ is Planck's constant, and $
u$ is frequency), waves with higher frequency have higher energy. Sound waves are not electromagnetic waves. Ultraviolet and infrared have lower frequencies compared to gamma - rays.

Answer:

D. gamma rays