Given noticeable points, about the amplitude of resultant waves of two harmonic progressive waves on stretached string.

Given noticeable points, about the amplitude of resultant waves of two

1.	Given noticeable points, about the amplitude of resultant waves of two harmonic progressive waves on stretached string.
Answer» <html><body><p></p>Solution :The amplitude of <a href="https://interviewquestions.tuteehub.com/tag/resultant-1187362" style="font-weight:bold;" target="_blank" title="Click to know more about RESULTANT">RESULTANT</a> wave is a function of phase difference `phi` between <a href="https://interviewquestions.tuteehub.com/tag/two-714195" style="font-weight:bold;" target="_blank" title="Click to know more about TWO">TWO</a> element waves. <br/> `A (phi) =2 a cos "" (phi)/(2)` <br/> When two waves have same phase, then `phi =0 ` <a href="https://interviewquestions.tuteehub.com/tag/hence-484344" style="font-weight:bold;" target="_blank" title="Click to know more about HENCE">HENCE</a>,` y (x,t) =2a sin (<a href="https://interviewquestions.tuteehub.com/tag/kx-1064991" style="font-weight:bold;" target="_blank" title="Click to know more about KX">KX</a> - omega t )` <br/> Relultant amplitude is `A = 2a. `It is maximum amplitude.<br/> If `phi =<a href="https://interviewquestions.tuteehub.com/tag/pi-600185" style="font-weight:bold;" target="_blank" title="Click to know more about PI">PI</a>` the two waves are completely out of phase, the amplitude of the resultant wave reduces to zero. <br/> `therefore (x ,t)= 0 [because A (phi) = 2 cos "" (phi)/(2) = 2 a cos "" (pi)/(2) =0]`</body></html>