Question

What is the wavelength of a photon of EMR with a frequency of 2.50e7 Hz?1.20x1015 m8.33x10-2 Hz1.20x107 m7.50x107 m

Answer 1

The wavelength is given by:

`\lambda=(v)/(f)`

where v is the velocity and f is the frequency. In this case the velocity is that of the light (since we have electromagnetic radiation), and the frequency is 2.5e7, then we have:

`\begin{gathered} \lambda=(3*10^8)/(2.5*10^7) \\ \lambda=12\text{ } \end{gathered}`