Plane harmonic waves of frequency 500 Hz are produced in air with displacement amplitude of `10mum`. Given that density of air is `1.29(kg)/(m^3)` and speed of sound in air is `340(m)/(s)`. Then

Given the density of air is 1.29 kg m^(-3) . Then, the relative density of air is ________.

A typical loud sound wave with a frequency of 1 Kh_(Z) has a pressure amplitude of about 10 Pa (a) At t = 0 , the pressure is a maximum at some point X_(1) . What is the displacement at that point at t = 0 ? (b) What is the maximum value of the displacement at any time and place/ Take the density of air to be 1.29 kg//m^(3) and speed of sound in air is 340 m//s .

A 10 W source of sound of frequency 1000 Hz sends out wave in air. The displacment amplitude a distance of 10 m from the source is (speed of sound in air = 340 m/s and density of air = 129 kg/m^(3) )

The minimum distance to hear echo (speed of sound in air is 340 m//s )

Ultrasonic waves of frequency 3 x 105 Hz are passed through a medium where speed of sound is 10 times that in air (Speed of sound in air is 300 m/s). The wavelength of this wave in that medium will be of the order of

If the density of air at NTP is 1.293kg//m^(3) and gamma=1.41 , then the velocity of sound in air at NTP is :

Calculate the intensity of a note of frequency 1000 Hz if the amplitude of vibration is 10^(-9) cm . Density of air = 1.3 kg m^(-3) and velocity of sound = 340 m s^(-1)

The intensity of a plane progressive wave of frequency 1000 Hz is 10^(-10) Wm^(-2) . Given that the speed of sound is 330 m//s and density of air is 1.293 kg//m^(3) . Then the maximum change in pressure in N//m^(2) is

Due to point isotropic sound source, theintensity at a point is observed as 40 dB. The density of air is rho=((15)/(11))(kg)/(m^3) and velocity of sound in air is 330(m)/(s) . Based on this information answer the following questions. Q. The ratio of displacement amplitude of wave at observation point to wavelength of sound waves is

A note of frequency 300 Hz has an intensity of 1 microwatt per square metre. What is the amplitude of the air vibrations caused by this sound ? (Density of air = 1.293 kg m^(-3) and velocity of sound in air = 332 ms^(-1) )