An organ pipe is in resonance with a tuning fork. What change will have to be made in the length l to maintain resonance if
(i) temperature increases
(ii) air is replaced by hydrogen
(iii) pressure is made higher ?

A closed organ pipe of length L is in resonance with a tuning fork. If a hole is made in the pipe at a distance L/4 from closed - end, it will be in resonance again, when:

A sonometer wire resonates with a tuning fork. If the length of the wire between the bridges is made twice even then it can resonate with the same tuning fork. How ?

In a closed tube when air column is 20cm it is in resonance with tuning fork A. When the length is increased by 2cm then the air column is in resonance with tuning fork B. When A and B are sounded together they produce 8 beats per second . The frequencies of the tuning forks A and B are (in Hz)

A certain organ pipe resonates in its fundamental mode at a frequency of 500 Hz in air. What will be the fundamental frequency if the air is replaced by hydrogen at the same temperature? The density of air is 1.20kgm^-3 and that of hydrogen is 0.089 kgm^-3 .

A tuning fork A is in resonance with an air column 32 cm long and closed at one end . When the length of this column is increased by 1 cm ,it is in resonance with another fork B . When A and B are sounded together , they produce 40 "beats in" 5 s . Find their frequencies .

An organ pipe is sounded with a tuning fork of frequency 256 Hz. When the air in the pipe is at a temperature of 15^@C , 23 beats are heard in 10 sec. When the tuning fork is loaded with a small piece of wax, the beat frequency is found to decrease. What change of temperature of the air in the pipe is necessary to bring the pipe and the unloaded fork into unison?

In a resonance tube experiment, resonance occurs with a tuning fork of frequency 420 Hz, when the length of the air column is 19 cm. Resonance occurs again when the length is increased to 59 cm. When is the velocity of sound in air ?

The third harmonic of an open pipe is in resonance with a tuning fork of frequency 495 Hz. What is the lenngth of the open pipe if the velocity of sound in air is 330 m/s? ( neglect the end correction )

The stirng stretched by tension T and length L vibrates in resonance with a tuning fork of frequency n. the tension in the stretched string is increased by 69% and length of string reduced by 35%. Then, the frequency of vibrating string is