Which factor does not affect frequency?

The correct answer highlights that amplitude of the wave does not affect frequency, which is fundamental in understanding wave dynamics. Frequency, which refers to the number of cycles of a wave that occur in a given period of time, is determined by the nature of the wave's source and the properties of the medium through which it travels.

The length of the wave, often referred to in the context of wavelength, has an inverse relationship with frequency. As wavelength increases, frequency decreases, and vice versa. This relationship is governed by the wave equation: speed = frequency × wavelength, demonstrating that changes in one directly impact the other.

The medium of transmission can also impact frequency because different materials can alter how sound propagates. While it does not directly change the frequency generated by a sound source, it can affect how the sound is perceived, especially if the speed of sound in that medium changes, which can lead to shifts in the effective frequency of the sound heard.

The sound source itself plays a vital role in determining frequency. For instance, different vibrating bodies, like strings or air columns, produce distinct frequencies based on their physical characteristics, such as tension, mass, and length.

In contrast, amplitude reflects the energy or intensity of a wave and corresponds to how loud a sound