1. The problem statement, all variables and given/known data 1)The frequency of a wave is 4.0 x 10^7Hz. What is its wavelength? 2. Relevant equations V= wavelength times frequency f=1/T 3. The attempt at a solution 1. Okay so I'm using the calculator on my iPod and I'm aware I'm supposed to use EE in some manner but don't know how.