Step-by-step explanation:
The frequency of a wave is defined as the number of vibrations or oscillations per unit time. It is also defined as the reciprocal of the time period. Its SI unit is hertz or s⁻¹.
Mathematically, it can be written as :

T is the time period of the wave.
The relation between the frequency and the wavelength is inverse. Also,

The wave having higher frequency have higher energy and vice versa.
Hence, this is the required solution.