An electromagnet wave has a frequency of 2.5 x 1012 Hz and a speed of 3 x 108 m/s. Use the equation for a wavelength to calculate the wavelength of this wave.
A) 5.34 x 10-6 m
B) 1.20 x 10-4 m
C) 3 x 108 m
D) 7.5 x 1020 m
An electromagnet wave has a frequency of 2.5 x 1012 Hz and a speed of 3 x 108 m/s. Use the equation for a wavelength to calculate the wavelength of this wave.
Wavelength=c/v, where c is the speed of light, and v is the frequency.
W=3 X 10^8/2.5 X 10^12
W=0.00012m=1.2 X 10^-4=.12Km
As you can see the answer is obviously "B"
