If two sinusoidal of the same frequency but of different amplitudes and phase difference are added, the resultant is a ?sinusoid of double the original frequency sinusoid of the same frequency non-sinusoid sinusoid of half the original frequency

Two waves of equal amplitude A𝐴, and equal frequency travel in the same direction in a medium. The amplitude of the resultant wave is

Light waves from two coherent sources superimpose at a point. The waves, at this point, can be expressed as `y_(1) = a sin [10^(15) pi t]` and `y_(2)a sin [10^(15) pi t + phi]`. Find the resultant amplitude if phase difference `phi` is (a) zero (b) `pi//3` (c) `pi` Also find the frequency (Hz) of resultant wave in each case.

Two sinusoidal waves 𝑦1 (𝑥, 𝑡) and 𝑦1(𝑥, 𝑡) have the same wavelength and travel together in the samedirection along a string (say in x-direction). Their amplitudes are 𝑦10 = 4 𝑚𝑚 and 𝑦20 = 3 𝑚𝑚, and theirphase constants are 0 and 𝜋3 respectively. Find the amplitude and phase constant of the resultant wave andexpress the resultant in the standard wave format

The sum of two sinusoids is periodic provided that their frequencies are______ of a fundamental frequency.

Two waves represented by ;  and  .are superposed. The resultant wave has an amplitude equal to :-zero2aa