Question

The frequency of a purple photon is 7.14×10^14 Hz. Which equation should be used to solve for the wavelength of the photon?

Answer 1

420.17 nm

Step-by-step explanation:

Given:

f = 7.14 × 10¹⁴Hz

c = 3 × 10⁸ m/s

c = fλ

λ = c/f

`=(3*10^8)/(7.14*10^(14))`

`=(3)/(7.14)*10^((8-14))`

`=0.42017*10^(-6)`

`=420.17*10^(-9)`

= 420.17 nm