Answer
3.49 x 10^17 Hz
Work Step by Step
For electromagnetic radiation we know that:
lamba (wavelength) * nu (frequency) = c (speed of light)
the speed of light is 3 x 10^8 m/s
We are given a wavelength of 0.86nm so we need to convert this to meters. One nm is 1x10^-9m so we have:
0.86 nm * (1m/1x10^9 nm) = 8.6 x 10^-10 m
Therefore, we have
nu (frequency) = (3x10^8 m/s) / (8.6 x 10^-10m) = 3.49 x 10^17 Hz
