Home
Class 12
PHYSICS
A vibrating tuning fork of frequency n i...

A vibrating tuning fork of frequency n is placed near the open end of a long cylindrical tube. The tube has a side opening and is also fitted with a movable reflecting piston. As the piston is moved through 8.75 cm, the intensity of sound just changes from a maximum to minimum. If the speed of sound is
350 metre per second, the value of n is `N^3` then N is.

Text Solution

Verified by Experts

The correct Answer is:
10
Additional path difference introduced when the piston is moved through `8.75 cm = 2 xx 8.75 = 17.50 cm`
Since, the intensity changes from a maximum to a minimum additional path `=lambda//2`
`therefore" "(lambda//2)=17.50" or "lambda=35.0cm`
Velocity, `v=350 m//s =35000cm//s" "therefore" Frequency, n"=(v)/(lambda)=(35000)/(35)=1000Hz`
Promotional Banner

Similar Questions

Explore conceptually related problems

Vibrating tuning fork of frequency n is placed near the open end of a long cylindrical tube. The tube has a side opening and is fitted with a movable reflecting piston. As the piston is moved through 8.75 cm , the intensity of sound changes from a maximum to minimum. If the speed of sound is 350 m//s . Then n is

A long cylindrical tube carries a highly polished piston and has a side opening . A tuning fork of frequency n is sounded at the open end of the tube . The intensity of the sounded heard by the listener changes if the piston is moved in or out. At a particular position of the piston he hears a maximum sound . When the piston is moved through a distance of 9 cm , the intensity of sound becomes minimum. If the speed of sound is 360 m//s , the value of n is

A tuning fork of frequency n is held near the open end of tube, the tube is adjusted until resonance occurs. If the two shortest lengths to produce resonance are L_1 and L_2 , then the speed of the sound is

A tuning fork of frequency 250 Hz is vibrating at one end of a tube as shown in the figure. If maximum sound is heard at the other end, then the velocity of the waves will be

A tuning fork of frequency 500 H_(Z) is sounded on a resonance tube . The first and second resonances are obtined at 17 cm and 52 cm . The velocity of sound is

A tuning fork is excited and placed on a tube a larger booming sound is heard because of

A tuning fork of frequency 340Hz is vibrated above a cylindrical hallow tube closed at one end . Poured in it. What is the maximum height of water required for resonance ?

A tuning fork vibrating with a frequency of 512 Hz is kept close to the open end of a tube filled with water , figure. The water level in the tube is gradually lowerd. When the water level is 17cm below the open end, maximum intensity of sound in heard. If the room temperature is 20^(@)C , calculate (a) speed of sound in air at room temperature. (b) speed of sound in air at 0^(@)C (c) if the water in the tube is replaced with mercury, will there be any difference in your observations?

A tuning fork vibrating with a frequency of 500 Hz is kept close to the open end of a tube filled with water, as shown in figure. The water level in the tube is gradually lowered When the water level is 17 cm below the open the open end, maximum intensity of sound is heard. If the room temperature is 20^(@) C, the speed of sound in air at the temperature is