How is frequency related to wave speed?

• A. Frequency is inversely proportional to wave speed
• B. Wave speed equals frequency multiplied by wavelength
• C. Frequency is independent of wave speed
• D. Wave speed varies only with temperature

Answer: (B)

The relationship between frequency and wave speed is described by the equation that states wave speed equals frequency multiplied by wavelength. This relationship encapsulates how waves propagate through different mediums. The frequency of a wave refers to how many wave cycles occur in a given time period, typically measured in hertz (Hz), while wavelength is the distance between consecutive peaks (or troughs) of a wave.

In this context, wave speed can be understood as the speed at which the wave travels through a medium, which is directly influenced by the product of frequency and wavelength. As the frequency increases, if the wavelength remains constant, the wave speed must also increase, and vice versa. This demonstrates a direct correlation rather than an inverse one, emphasizing that frequency plays a crucial role in determining how fast the wave moves through a medium.

Understanding this relationship is essential for various applications in physics, such as in telecommunications and acoustics, where manipulating either the frequency or wavelength can effectively control wave propagation and transmission.