Question

What is the speed of a wave with a wavelength of 10 mm and a frequency of 5.0 Hz?

Answer 1

speed = wavelength × frequency
speed = 10/1000 × 5.0
speed = 0.001 × 5.0
speed = 0.005m/s

Answer 2

Speed of the wave, v = 0.05 m/s

Step-by-step explanation:

It is given that,

Wavelength of the wave,
`\lambda=10\ mm=0.01\ m`

Frequency of the wave,
`\\u=5\ Hz`

The speed of the wave is given by the product of frequency and the wavelength i.e.

`v=\\u* \lambda`

`v=5* 0.01`

`v=0.05\ m/s`

Hence, the speed of the wave is 0.05 m/s