Home
Class 11
PHYSICS
A typical loud sound wave with a frequen...

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`.

Text Solution

Verified by Experts

The correct Answer is:
A, B, C
(a) Displacement is zero when pressure is maximum.
(b) `Delta p_(max) = BAK`
`= (rho nu)^(2) A ((omega)/(nu)) = 2 pi f Arho nu`
:. `A = (Deltap_(max))/(2 pi f rho nu)`
`= (10)/((2 pi)(10^(3))(1.29)(340)`
`= 3.63 xx 10^(-6) m`
Promotional Banner

Topper's Solved these Questions

  • SOUND WAVES

    DC PANDEY|Exercise Exercise 19.2|4 Videos

  • SOUND WAVES

    DC PANDEY|Exercise Exercise 19.3|4 Videos

  • SOUND WAVES

    DC PANDEY|Exercise Level 2 Subjective|19 Videos

  • SOLVD PAPERS 2017 NEET, AIIMS & JIPMER

    DC PANDEY|Exercise Solved paper 2018(JIPMER)|38 Videos

  • SUPERPOSITION OF WAVES

    DC PANDEY|Exercise Level 2 Subjective|8 Videos

Similar Questions

Explore conceptually related problems

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

What is the phase difference between the displacement wave and pressure wave in sound wave :-

What is the amplitude of motion for the air in the path of a 60 dB , 800 H_(Z) sound wave? Assume that rho_(air)= 1.29 kg//m^(3) and upsilon = 330 m//s .

(a) what is the displacemant amplitude for a sound wave having a frequency of 100 Hz and a pressure amplitude of 10 pa? (b) The displacement amplitude of a sound wave of frequency 300 Hz is 10^(-7) m. what is the pressure amplitude of this wave ? speed of sound in airb is 340 ml s and density of a ir is 1.29kg// m^(3) .

At 10^5 Nm^(-2) atmospheric pressure the density of air is 1.29 kg m^(-3) .If gamma=1.41 for air, calculate the speed of sound in air.

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) )

The pressure variation in a sound wave in air is given by Deltap = 12 sin (8.18X - 2700 t + pi//4) N//m^(2) find the displacement amplitude. Density of air = 1.29 kg//m^(3) .