What is the frequency in hertz of photon that has a wavelength of 543 nm?

Answer 1

Use the principle that the wavelength of the photon in meters x the frequency in Hz = the speed of light.

Convert nm to m.

543nm = 5.43 x 10-7m

Equation:

c = ƒ•λ, where c is the speed of light in a vacuum, 3.00 x 108 m/s, f is the frequency in Hz, and λ is the wavelength in meters.

To solve for frequency, do the following:

ƒ = c/λ = (3.00 x 108m/s)/(5.43 x 10-7m) = 5.52 x 1014Hz