A sound wave of frequency 440 Hz is passing through air. An `O_2` molecule (mass`=5.3xx10^(-26)Kg)` is set in oscillation with an amplitude of `10^-6m` speed at the centre of its oscillation is :
A sound wave of frequency 440 Hz is passing through in air. An O_(2) molecule ( mass = 5.3 xx 10^(- 26) kg) is set in oscillation with an amplitude of 10 ^(-6) m . Its speed at the centre of its oscillation is
An electron oscillating with a frequency of 3xx10^6 Hz, would generate -
A sound wave of frequency 280 Hz has an intensity of 1.00 W//m2 ? What is the amplitude of the air oscillations caused by this wave?
A particle of mass 0.10 kg executes SHM with an amplitude 0.05 m and frequency 20 vib/s. Its energy os oscillation is
A plice siren emits a sound wave of frequency 440 Hz. The speed of sound is 332 m/s. if the siren is moving away from the listerner with a speed of 18 m/s relative to the air and the listerner is moving towards the siren with a speed of 68 m/s relative to the air, then what frequency does the listern hear?
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
A particle of mass 0.2 kg is excuting SHM of amplitude 0.2 m. When it passes through the mean position its kinetic energy is 64 xx 10^(-3) J . Obtain the equation of motion of this particle if the initial phase of oscillation is pi//4 .
A sound wave in air has a frequency of 300 H_(Z) and a displacement ampulitude of 6.0 xx10^(-3) mm . For this sound waves calculate the (a) Pressure ampulitude (b) intensity (c ) Sound intensity level (in dB) Speed of sound = 344 m//s and density of air = 1.2 kg//m^(3) .
