When two wavs of almost equal frequencies `n_(1)` and `n_(2)` reach at a point simultaneously, what is the time interval between successive maxima?

Two radio stations broadcast their programmes at the same amplitude A and at slightly different frequencies omega_1 adn omega_2 respectively, where omega_1-omega_2 = 10^(13) Hz. A detector receives the signals from the two stations simultaneously. It can detect signals of intensity ge2A^2 . Find the time interval between successive maxima of the intensity of the signal received by the detector.

Difference between S_N1 and S_N2 reaction ?

A person is listening to a tone of 500 Hz sitting at a distance of 450 m from the source of sound. What is the time interval between successive compressions from the source ?

If a_1=1 and a_n =na_(n-1) , for all positive integers n ge 2 , then a_5 is equal to :

The electron in a hydrogen atom make a transtion n_(1) rarr n_(2) where n_(1) and n_(2) are the priocipal quantum number of the two states . Assume the Bohr model to be valid . The time period of the electron in the initial state is eight time that in the final state . The possible values of n_(1) and n_(2) are

Prove that n!+1 is not divisible by any integer between 2 and n.

At compensation point, the rates of two processes taking place simultaneously in a plant become equal. What are these two processes?

Suppose x and y are two real numbers such that the rth mean between x and 2y is equal to the rth mean between 2x and y when n arithmatic means are inserted between them in both the cases. Show that : (n+1)/r-y/x=1 .