Question

arrange the kinds of electromagnetic radiation in order of decreasing energy (highest to lowest): x - ray, radio waves, infrared radiation, ultraviolet light, visible light, microwaves

x - rays > infrared radiation > microwaves > radio waves > visible light > ultraviolet light
x - rays > ultraviolet light > infrared radiation > microwaves > radio waves > visible light
x - rays > ultraviolet light > infrared radiation > visible light > microwaves > radio waves
x - rays > ultraviolet light > visible light > infrared radiation > microwaves > radio waves

Explanation:

Step1: Recall energy - frequency relationship

The energy of electromagnetic radiation is directly proportional to its frequency ($E = h
u$, where $E$ is energy, $h$ is Planck's constant and $
u$ is frequency). Higher - frequency radiation has higher energy.

Step2: Know the frequency order

The frequency order of electromagnetic radiation from highest to lowest is: X - rays > ultraviolet light > visible light > infrared radiation > microwaves > radio waves.

Step3: Determine energy order

Since energy is proportional to frequency, the energy order from highest to lowest is: X - rays > ultraviolet light > visible light > infrared radiation > microwaves > radio waves.

Answer:

X - rays > ultraviolet light > visible light > infrared radiation > microwaves > radio waves