Speed of sound in water was found to be 1440 m/s. If the wave length is 144 m then find the frequency?

CONCEPT:

• Speed of sound: The speed of sound is defined as the dynamic propagation of sound waves. This depends on the characteristics of the medium through which the propagation takes place in which it travels.
  • The speed of sound is the distance travelled per unit of time by any sound waves in an elastic medium.
• Factors Affecting the speed of sound:
  • The density of the medium: 
  • The temperature of the medium

CALCULATION:

The velocity of sound = Frequency × Wavelength

Where λ is the wavelength, ν is the frequency and V is the velocity

ν = V/λ 

Frequency (ν) = 1440/144 = 10 Hz

• Hence option 2 is the answer.