For different types of waves — such as electromagnetic waves ... where λ is the wavelength, v is the wave velocity and f is the wave's frequency. This formula highlights the inverse ...

THE free-space phase velocity of microwaves of length 1.25 cm. and frequency 24,000 Mc./s. has been measured by a new method.

You need to know about these quantities used in waves - what they mean, the symbols used for them and the units used to measure them. The greater the amplitude of a wave then the more energy it is ...