Question

Why does the frequency of a wave increase as the wavelength decreases? A) because the wave speed remains constant B) because the amplitude of the wave must remain constant C) because the frequency must get larger to increase the speed D) because the wavelength must get smaller to decrease the speed

Answer 1

A is the correct answer 

Answer 2

I will explain for YOU!

Wavelength goes up as frequency goes down because the wave speed remains constant. This is an inverse proportionality. This is because (wavelength x frequency = wave speed). If the wave speed is constant, and wavelength goes down, then frequency must go up to compensate.