Question

part 5: progress check of waves & em spectrum (1 attempt answers are relased)
1 fill in the blank 1 point
a longer wavelength - choose your answer... frequency.
frequency
1 second
wavelength
crest trough crest

Explanation:

The relationship between wavelength and frequency in waves is inversely proportional. The formula is $c = \lambda f$ (where $c$ is the speed of light or wave - speed in a medium, $\lambda$ is wavelength and $f$ is frequency). When the wavelength $\lambda$ is longer, to keep $c$ constant, the frequency $f$ must be lower.

Answer:

lower