Question

most energy? radio waves have the least amount of energy. visible light has more energy than x - rays. the red portion of the visible spectrum has less energy than the violet portion. gamma rays have the most amount of energy. infrared rays have more energy than ultraviolet.

Explanation:

• For electromagnetic waves, energy \(E = h

u\) (where \(h\) is Planck's constant and \(
u\) is frequency). Frequency increases from radio waves to gamma rays.

• Radio waves have low frequency, so low energy. Gamma rays have high frequency, high energy.
• In visible light, red has lower frequency (longer wavelength) than violet. So red has less energy than violet.
• X - rays have higher frequency (more energy) than visible light. Ultraviolet has higher frequency (more energy) than infrared.

Answer:

The red portion of the visible spectrum has less energy than the violet portion.