- #1

Shahab Mirza

- 28

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I waw studying super position of two Sound Waves , traveling in same medium with same frequency , same wavelength and same amplitude while differing in phase .

quick derivation :

Wave 1 displacement y1= A sin (kx-vt ) and wave 2 displacement y2= A sin (kx-vt-phase constant)

after adding y1+y2 and then using trigonometry I got Final equation :-

y= (2A cos phase constant / 2) sin (kx-vt - phase constant / 2 ) ok now my question is that how it is interpreted in my textbook ? it is written that this equation shows that . 1. It can bee seen that resultant wave function is hormonic and has same frequency and wavelength as individual waves . Amplitude is twice than individual wave of same wavelength .

I want to know that How people interpret these equations and develop relationship between them ? I am having difficulty in physics because I lack this ability to know what equation delivers , Thanks please help me out