Home
Class 11
PHYSICS
A note of frequency 300 Hz has an intens...

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)`)

Text Solution

Verified by Experts

The correct Answer is:
`3.62 xx 10^(-8) m`
Promotional Banner

Topper's Solved these Questions

  • INTENSITY AND PITCH OF MUSICAL NOTES

    NN GHOSH|Exercise EXERCISE|14 Videos
  • HYDROSTATICS

    NN GHOSH|Exercise EXERCISES|59 Videos
  • ISOTHERMAL AND ADIABATIC PROCESS

    NN GHOSH|Exercise All Questions|29 Videos

Similar Questions

Explore conceptually related problems

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?

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 density of air is 1.293 kg m^3 . Express it in cgs units.

The minimum intensity of audibility of a source is 01^(-12) "watt"//m^(2) . If the frequency of the note is 1000 Hz, calculate the amplitude of vibrations of air particles. Density of air = 1.293 kg m^(-3) and velocity of sound =340 ms^(-1) ["Hint " a = sqrt((I)/(2pi^(2)n^(2)rhoC)) ]

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 :

The frequency of a tuning fork is 600 Hz. What is the number of vibrations made by the tunning fork, when the sound produced by the tuning fork travels a distance of 110 ? (Velocity of sound in air is 330 ms^(-1) )

A sound wave having a frequency of 100 Hz and pressure amplitude of 10 pa, then calculate the displacement amplitude (Given speed od sound in air = 340 m/s and density of air = 1.29 kg/m^(3) )

A train standing at the outer signal of a railway station blows a whistle of frequency 400Hz in still air. The train begins to move with a speed of 10ms^(-1) towards the platform. What is the frequency of the sound for an observer standing on the platform ? (sound velocity in air =330ms^(-1))