What is the wavelength of a 2,000-kHz sound wave (a) in air, (B) in helium, and (c) in water?© BrainMass Inc. brainmass.com October 24, 2018, 8:01 pm ad1c9bdddf
Please see the attached file.
a) Velocity of sound in a liquid is given by the equation : V = √K/ρ ........(1)
where K = Bulk modulus of elasticity of the liquid and ρ is the density.
b) Velocity of sound in a gas is given by the equation : V = √γP/ρ .......(2)
where P = Pressure,
ρ = Density
γ = Ratio of the specific heats of the gas at constant pressure and constant volume ...
The problem has been solved using the relation between velocity, frequency and wave length.
Frequency and wavelength of emitted sound wave
39. A violin string 17.8 cm long and fixed at both ends oscillates in it's n = 5 mode. The speed of waves on the string is 206 m/s, and the speed of sound in air is 348 m/s. What are (a) the frequency and (b) the wavelength of the emitted sound wave?
51. The A string of a violin is a little too tightly stretched. Beats at 4 per second are heard when the string is sounded together with a tuning fork that is oscillating accurately at concert A (440 Hz). What is the period of the violin string oscillation?View Full Posting Details