Question

which is the best definition of high electromagnetic energy? high electromagnetic energy has short wavelengths and a high frequency. high electromagnetic energy has short wavelengths and a low frequency. high electromagnetic energy has long wavelengths and a high frequency.

Explanation:

The energy of an electromagnetic wave is given by the formula \(E = h
u\), where \(h\) is Planck's constant and \(
u\) is the frequency. So, higher frequency means higher energy. Also, the relationship between frequency (\(
u\)) and wavelength (\(\lambda\)) is \(
u=\frac{c}{\lambda}\) (where \(c\) is the speed of light). So, when frequency is high, wavelength is short.

Answer:

High electromagnetic energy has short wavelengths and a high frequency.