In resonance tube, an air column of length 32 cm is in unison with a tuning fork.If the length is changed to 32.4 cm, 5 beats per second are heard. Find the frequency of the tuning fork.

A sonometer wire 100 cm long produces a resonance with a tuning fork . When its length is decreased by 10 cm, 8 beats per second are heard. Find the frequency of tuning fork.

A stretched sonometer wire is in unison with a tuning fork.When the length is increased by 4 % , the number of beats heard per second is 6. Find the frequency of the fork.

A sonometer wire is in unison with a tuning fork.When its lengths increases by 4%, it gives 8 beats per secon with the same the fork. The frequency of the fork is

A sonometer wire resonates with a tuning fork. It itslength isincreased by 5%,10 beats are produced per second. The frequency of the tuning fork is.

A sonometer wire under certain tension is in unison with a tuning fork. When only the tension in the wire is increased by 2 % , 3 beats per second are produces.Find the frequency of fork.

A resonance air column of length 20 cm resonates with a tuning fork of frequency 250 Hz . The speed of sound in air is

A sonometer wire of length l_(1) is in reasonance with a frequency 250 Hz. If the length of wire is increasesed then 2 beats per second are heard. What is ratio of the lengths of the wire ?

The freuquency of tuning forks A and B are respectively 3% more and 2% less than the frequency of tuning fork C . When A and B are simultaneously excited, 5 beats per second are produced. Then the frequency of the tuning fork A (in Hz) Is

A string under a tension of 100 N , emitting its fundamental mode , gives 5 beats//s with a tuning fork. When the tension is increased to 121 N , again 5 beats//s are heard. The frequency of the fork is

A sonometer wire of length L_1 vibrates with a frequency 250 Hz. If the length of wire is in creased then 2 beats per second are heard. What is ration of the lengths of the wire?