An X-ray has a wavelength of 1.15*10^-10m. calculate the frequency?
Hmmmmm, I understand what you're saying... I just don't understand how to do it...?
Wavelength=Speed of light / frequency
1.15*10^-10m=299,792458/F
F=299,792,458 / [1.5 X 10^-10]
F=~2 X 10^18 Hertz.
