Answer:
[tex]\lambda=10^{-10}\ m[/tex]
Step-by-step explanation:
Given that,
The frequency of x-rays, [tex]f=3\times 10^{18}\ Hz[/tex]
We need to find the wavelength for x-rays. The relation between wavelength, frequency and speed of light is given by :
[tex]v=f\lambda\\\\\lambda=\dfrac{c}{f}\\\\\lambda=\dfrac{3\times 10^{8}}{3\times 10^{18}}\\\\=10^{-10}\ m[/tex]
So, the wavelength for x-rays is [tex]10^{-10}\ m[/tex].