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

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.

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waves moving from a fast medium to a slow medium will experience a reflection as light travels more slowly than red light. total internal reflection occurs when the critical angle is.