Explain production of beats and deduce analytically the expression for beat frequency.

Explain applications of beats.

Define period of beat

Explain any two applications of beats.

Define frequency of beat.

What are beats ?

Beats are produced due to

State the law of radioactive decay and deduce an expression for half life of a radioactive substance.

Eleven tuning forks are arranged in the ascending order of frequencies .Each tuning fork gives 4 beats per second with the preceding fork. If the frequency of the last fork is twice that of the first , find the frequency of the first , last and fifth fork.

A set of 31 tuning forks is arranged in series of decreasing frequencies. Each fork gives 6 beats per second with the proceeding one and frequency of the first fork is twice the frequency of the last. Find the frequency of the first and the last tuning fork.

A set of 56 tuning forks is arranged in series of increasing frequencies.If each fork gives 4 beats with preceding one and the frequency of the last in twice that of first ,then frequency of the first fork is