Question

Compute the wavelength of an X-ray with a frequency of 2.0 1018 Hz. answer in:___nm

Answer 1

Answer:

0.15 nm

Step-by-step explanation:

The speed of an x-ray is:

v = 3 x 10⁸ m/s

The frequency of the x-ray:

f = 2 x 10^18 Hz

The wavelength is calculated below

`\begin{gathered} v=\lambda f \\ \\ \lambda=(v)/(f) \\ \\ \lambda=(3*10^8)/(2*10^(18)) \\ \\ \lambda=1.5*10^(-10)m \\ \\ \lambda=1.5*10^(-1)*10^(-9)m \\ \\ \lambda=0.15nm \end{gathered}`