16. sketch a wave with low frequency and low energy.
16. sketch a wave with low frequency and low energy.
Answer
Explanation:
Step1: Recall wave - property relationships
The energy $E$ of a wave is related to its frequency $f$ by $E = hf$ (where $h$ is Planck's constant), and the frequency $f$ and wavelength $\lambda$ are related by $f=\frac{c}{\lambda}$ (where $c$ is the speed of light in a vacuum). A low - frequency wave has a long wavelength, and since $E = hf$, a low - frequency wave also has low energy.
Step2: Sketch the wave
Draw a wave with a relatively long wavelength. The wave should have a smooth up - and - down pattern with a large distance between consecutive crests (or troughs).
Answer:
Sketch a wave with a long wavelength (large distance between consecutive crests or troughs) to represent a low - frequency and low - energy wave.