It is equal to the speed v of a wave train in a medium divided by its frequency f. Determine the waves frequency. The frequency of a wave can be calculated using this equation.
Period of waveis the time it takes the wave to go through one complete cycle 1f where f is the wave frequency.
620 nm 1 m 109 nm 620107 m 620 nm 1 m 10 9 nm 620 10 7 m. Multiply pi by two. In this formula f represents the frequency of the wave and o represents the angular. Thus n c l.