The wavelength of a specific photon in the infrared spectrum is 4 x 10^6 meters. Given that the speed of light is 2.998 x 10^8 m/s, what would be the frequency of this infrared wave?

Question

2901 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2018-04-27T05:47:25

The frequency is #=74.95Hz#

Apply the equation

#c=lambda nu#

The wavelength is

#lambda=4*10^6m#

The speed of light is

#c=2.998*10^8ms^-1#

The frequency is

#nu=c/lambda=(2.998*10^8)/(4*10^6)=0.7495*10^2 Hz#