Answer:
Wavelength of wave is 2.5 meters
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 :
[tex]v=f\lambda\\\\\lambda=\dfrac{v}{f}\\\\\lambda=\dfrac{350\ m/s}{140\ Hz}\\\\\lambda=2.5 m[/tex]
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.