Question 15 (1 point) Visible light is part of the electromagnetic spectrum Humans tell the difference in color based on the of the electromagnetic wave. a amplitude b wavelength C charge d magnetism

## Step 1<br />The problem is asking us to identify the property of the electromagnetic wave that humans use to distinguish different colors. The options provided are amplitude, wavelength, charge, and magnetism.<br /><br />## Step 2<br />The amplitude of an electromagnetic wave is related to its intensity or brightness, not its color. Therefore, option 'a' is not the correct answer.<br /><br />## Step 3<br />The charge of an electromagnetic wave is not a property of the wave itself, but rather of the particles that make up the wave. Therefore, option 'c' is not the correct answer.<br /><br />## Step 4<br />Magnetism is a property of the electromagnetic wave, but it is not what humans use to distinguish different colors. Therefore, option 'd' is not the correct answer.<br /><br />## Step 5<br />The wavelength of an electromagnetic wave is what humans use to distinguish different colors. Different wavelengths correspond to different colors. For example, red light has a longer wavelength than blue light. Therefore, option 'b' is the correct answer.