A wire 50cm long vibrates 100 times per second .If the length is shortened to 30 cm and the stretching force is quadrupled, what will be the frequency ?

A wire 0.5 m long vibrates 100 times a second. If the length of the wire is shortened to 0.4 in and the stretching force is increased to 4 times its original value what will be the new frequency?

If a body vibrates 50 times in a second, then its frequency is ______

A note from a tuning fork is in unision with the note of a 25 cm long stretched wire. If the length is changed to 25.5 cm the tension remaining unchanged, 3 beats per second are heard. Find the frequency of the fork.

A vibrating string fork and a vibrating sonometer wire of length 30 cm produce 4 beats/ sec. if the length of the wire is increases to 32 cm, again 4 beats/ sec. heard, what is the frequency of the tuning fork ?

A fork gives 5 beats with a 40cm length of sonometer wire. If the length of the wire is shortened by 1cm, the number of beats is still the same. The frequency of the fork is

A tuning fork gives 4 beats with 50 cm length of a sonometer wire. If the length of the wire is shortened by 1 cm, the number of beats is still the same. The frequency of the fork is

Two similar sonometer wires of the same same material produce 2 beats per second. The length of one is 50 cm and that of the other is 50.1 cm. Calculate the frequencies of the two wires.