Question

some electromagnetic waves, like x - rays, ultraviolet rays, and gamma rays, are \high energy\. what does this mean? their frequency is much lower than other electromagnetic waves. their frequency is much higher than other electromagnetic waves.

Explanation:

The energy of an electromagnetic wave is directly proportional to its frequency. Higher - frequency waves have more energy. X - rays, ultraviolet rays, and gamma rays are called "high energy" because they have a much higher frequency compared to other electromagnetic waves.

Answer:

Their frequency is much HIGHER than other electromagnetic waves.