May 2, 2011

3.7 Using the previous relationships

$\mathit{v = f \times \lambda }$

Use the below relationships in different contexts, including sound waves and electromagnetic waves

Examples:
1. A certain sound wave has a frequency of 170 hertz (cycles per second) and a wavelength of 2 metres.
What is the speed of sound?

2.  The time period of a waves, T, is the time taken to produce one complete wave.
If the frequency of a wave is 2Hz, what is its time period?

Practice makes Perfect.