A sample of light has a wavelength of 2.61 x 10^-12 m. What is it's frequency?

A popular radio station broadcasts with a frequency of 94.7 mHz. What is the wave length of the broadcast? (1MHz = 1 x10^6 HZ)

What is the wavelength of electromagnetic radiation having a frequency of 7.11 x 10^ Hz?

2 answers

c = fw.
f = freq in Hz
w = wavelength in m
c = speed of light in m/s
test