Question

what is true about energy on the low end of the electromagnetic spectrum? they have high frequency and a short wavelength. they have high frequency and a long wavelength. they have low frequency and a long wavelength.

Explanation:

In the electromagnetic spectrum, energy is related to frequency and wavelength. The formula \(E = h
u\) (where \(E\) is energy, \(h\) is Planck's constant, and \(
u\) is frequency) shows energy is proportional to frequency. At the low - energy end, frequency is low. Also, from the wave equation \(c=\lambda
u\) (where \(c\) is the speed of light, \(\lambda\) is wavelength, and \(
u\) is frequency), when frequency \(
u\) is low, wavelength \(\lambda\) is long (since \(c\) is constant).

Answer:

They have low frequency and a long wavelength.