Question

question 10 (mandatory) (1 point) saved listen which statement is true? as the frequency of electromagnetic radiation decreases, a) its electric field component remains constant. b) its magnetic field component remains constant. c) its energy decreases. d) its speed decreases. e) its wavelength decreases.

Explanation:

The energy of electromagnetic radiation is given by the formula $E = h
u$, where $h$ is Planck's constant and $
u$ is the frequency. As frequency $
u$ decreases, energy $E$ decreases since $h$ is a constant. The speed of electromagnetic radiation in a vacuum is constant ($c=\lambda
u$). The electric and magnetic field components are related to the intensity and nature of the source and not directly to frequency in a simple constant - remaining way as described in options a and b. Wavelength $\lambda$ increases as frequency $
u$ decreases because $c$ is constant.

Answer:

C. its energy decreases.