Question

a decreasing wavelength means...
less energy due to a lower frequency
more energy due to a higher frequency
rewatch

Explanation:

Electromagnetic radiation follows the relationships: $c = \lambda
u$ (where $c$ is the speed of light, $\lambda$ is wavelength, $
u$ is frequency) and $E = h
u$ (where $E$ is energy, $h$ is Planck's constant). A decreasing wavelength means an increase in frequency, and higher frequency corresponds to higher energy.

Answer:

more energy due to a higher frequency