A fork of unknown frequency gives 4 beats per second when sounded with another of frequency `256`. The fork is now loaded with a piece of wax and again 4 beats per second are heard. Calculate the frequency of the unknown fork.

A tunning fork of unknown frequency gives 4 beats per second when sounded with a fork of frequency 320Hz. When loaded with a little wax it give 3 beats per second. Find the unknown frequency.

A tunning fork of unknown frequency gives 4 beats per second when sounded with a fork of frequency 320 Hz. When loaded with little wax, it gives 3beats per second. Find the unknown frequency. [

A fork of unknown frequency gives 3 beats/sec. when sounded with a fork of frequency 256 Hz. On loading the fork of unknown frequency with wax, the number of beats produced per second remain 3. Calculate the unknown frequency of the fork.

A tuning fork of unknown frequency produoed 4 beats per second when sounded with a standard fork of frequency 256 Hz. The beat frequency decreased when a little wax was pot on a prong of the first fork. What was the frequency of the fork before loading it with wax ?

A tuning fork A of frequency 384 Hz gives 6 beats per second when sounded with another tunig fork B.On loading B with a littile wax,the number of beats per second becomes 4.What is the frequency of B?

A tuning fork produces 4 beats per second when sounded togetehr with a fork of frequency 364 Hz. When the first fork is loaded with a little wax ten the number of beats becomes two per second. What is the frequency of the first fork?

A tuning fork produces 4 beats per second when sounded togetehr with a fork of frequency 364 Hz. When the first fork is loaded with a little wax ten the number of beats becomes two per second. What is the frequency of the first fork?

A fork of unknown frequency when sounded with one of frequency 288 Hz gives 4 beats per second and when loaded with a piece of wax again gives 4 beats per second. How do you account for this and what was the unknow frequency ?

A tuning fork of unknown frequency produces 4 beats per second when sounded with another tuning fork of frequency 254 Hz. It gives the same number of beats per second when unknown tuning fork loaded with wax . The unknown frequency before loading with wax is