The wavelength of the yellow light given off by a sodium

Last updated: 7/30/2022

The wavelength of the yellow light given off by a sodium vapor street lamp is 589 nm (1m = 109 nm). What is the frequency of this light in Hz (s-1)? 5.09 x 105 -1 5.09 x 1014 S-1 1.96 x 10-6-1 1.96 × 10-13 -1 1.77 x 10² S-1