Question

What is the wavelength of a wave that has a speed of 350 meters/second and a frequency of 140 hertzDoes sound travel faster in a warm room or a cold room? Explain your answer.

Answer 1

Wavelength of wave is 2.5 meters

Step-by-step explanation:

Given that,

Speed of a wave, v = 350 m/s

Frequency of the wave, f = 140 Hz

The formula to find the speed of sound is given by :

`v=f\lambda\\\\\lambda=(v)/(f)\\\\\lambda=(350\ m/s)/(140\ Hz)\\\\\lambda=2.5 m`

The speed of sound is more in higher temperature. At higher temperature, the molecules vibrate with more energy. As a result, sound travel faster in a warm room.