Answer:
[tex]\lambda=10^{-4}\ m[/tex]
Explanation:
Given that, [tex]\lambda=10^{-4}\ m[/tex]
The frequency of infrared wave, [tex]f=3\times 10^{12}\ Hz[/tex]
We need to find the wavelength of infrared wave. The relation between the frequency and the wavelength is given by :
[tex]c=f\lambda[/tex]
where
c is the speed of light
[tex]\lambda=\dfrac{c}{f}\\\\\lambda=\dfrac{3\times 10^8}{3\times 10^{12}}\\\\=0.0001\ m\\\\=10^{-4}\ m[/tex]
So, the wavelength of the infrared wave is [tex]10^{-4}\ m[/tex].
