Question

In a dentist's office an X-ray of a tooth is taken using X-rays that have a frequency of 6.30 x 10¹⁸ Hz. What is the wavelength in vacuum of these X-rays?

Answer 1

$\lambda=c/f=299 792 458/(6.3\cdot10^{18})=4.8\cdot10^{-11}\ (m)$ . Answer