What happens to the wavelength of a wave when the frequency decreases?

Solution 9E The relationship between the wavelength (), frequency (f ) and the velocity (v ) of a wave is given by Now, if the velocity of the wave remains constant, then from the above equation, we can write that So from the above relationship, we can see that frequency is inversely proportional to the wavelength of the wave. So if the frequency of the wave is decreased, the wavelength will increase, provided the velocity of the wave remains same.