WaveLength Question

Question

The green light emitted by a stoplight has a wavelength of 537 nm. What is the frequency of this photon? (c = 3.00 × 10⁸ m/s).

Answer 1

The formula you need is (frequency)x(wavelength) = speed of light.

You simply need to plug in your given quantities into this equation. Make sure your units match - convert nm to m. The conversion factor you need is 10^-9 m = 1 nm.

Solution is very straightforward from there.