frequency of violet light wave

Question

What would the frequency be of a violet light wave with wavelength of 410.17 nm?

Answer 1

Recall that

 

c = λf

 

f = c/λ = (3 x 10⁸ m/s) / (410.17 x 10^-9 m) ≅ 7.3 x 10¹⁴ Hz