Home
Class 11
PHYSICS
A source of sound placed at the open end...

A source of sound placed at the open end of a resonance column sends an acoustic wave of pressure amplitude `P_(0)` inside the tube. If the atmospheric pressure is `P_(A)`, then the ratio of maximum and minimum pressure at the closed end of the tube will be

A

`((rho_(A)+rho_(0)))/((rho_(A)+rho_(0)))`

B

`((rho_(A)+2rho_(0)))/((rho_(A)-2rho_(0)))`

C

`(rho_(A))/(rho_(0))`

D

`((rho_(A)+(1)/(2)rho_(0)))/((rho_(A)-(1)/(2)rho_(0)))`

Text Solution

Verified by Experts

The correct Answer is:
A
`rho_(max)=rho_(A)+rho_(0)andrho_(min)=rho_(A)-rho_(0)`
`(rho_(max))/(rho_(min))=(rho_(A)+rho_(0))/(rho_(A)-rho_(0))`.
Promotional Banner

Similar Questions

Explore conceptually related problems

In the given figure, atmospheric pressure p_0 = 1 atm and mercury column length is 9 cm. Pressure p of the gas enclosed in the tube is

A sound wave of pressure amplitude 14 pascal propagates through the air medium. The normal pressure of air is 1.0xx10^(5)N//m^(2) the difference between maximum and minimum pressure in the medium is

Figure shows a capillary tube of radius r dipped into water. If the atmosphere pressure is P_0 , the pressure at point A is

The air column in a pipe closed at one end is made to vibrate in its second overtone by a tuning fork of frequency 440 Hz . The speed of sound in air is 330ms^(-1) . End corrections may be naglected. Let P_(0) denote the mean pressure at any point in the pipe, and DeltaP the maximum amplitude of pressure variation. (a) Find the length L of the air column. (b) What is the amplitude of pressure variation at the middle of the column? ( c ) What are the maximum and minimum pressures at the open end of the pipe? (d) What are the maximum and minimum pressures at the closed end of the pipe?

The soap bubble formed at the end of the tube is blown very slowly. Draw the graph between excess of pressure inside the bubble with time.

The Quill's tube with its open end upwards is fixed in slanting position making 45^(@)' with the vertical line. If the atmospheric pressure be equal to 'H' and the length of the mercury pallet in the Quill's tube 'h', then the pressure of air enclosed in the tube is equal to _____

(i) Two cylindrical pipes are each of length L = 30 cm . One of them contains hydrogen and the other has oxygen at the same temperature. The ends A, B, C and D of the pipes are fitted with flexible diaphragms. The diaphragms A and C are set into oscillations simultaneously using the same source having frequency f = 600 Hz . Calculate the difference in phase of oscillations of the diaphragms D and B if it is known that the speed of sound in hydrogen at the temperature concerned is 1200 m//s . (ii) The air column in a pipe closed at one end is made to vibrate in its second overtone by a tuning fork of frequency 440 Hz . The speed of sound in air is 330 m//s . P_(0) is mean pressure in the pipe and DeltaP_(0) is maximum amplitude of pressure variation. Neglect end correction. (a) Find the length L of air column. (b) What is amplitude of pressure variation at the middle of the column? (c) What is maximum and minimum pressure at the closed end?

A narrow tube of length l and radius r is sealed at one end. Its open end is brought in contact with the surface of water while the tube is held vertical. The water rises to a height h in the tube. The contact angle of water with the tube wall is theta , density of water is rho and the atmospheric pressure is P_(o) . Find the surface tension of the liquid. Assume that the temperature of air inside the tube remains constant and the volume of the meniscus is negligible.