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Asked by sarveshvibrantacademy | 09 Apr, 2019, 19:25: PM
answered-by-expert Expert Answer
In this waves are moving in opposite direction so there will be a standing wave. If the phase difference is π formation of node takes place which is a result of destructive interference 
So option c is correct
standing wave resulting from two oppositely directed sinusoidal waves

The movie at up shows how a standing wave may be created from two travelling waves. If two sinusoidal waves having the same frequency (and wavelength) and the same amplitude are travelling in opposite directions in the same medium then, using superposition, the net displacement of the medium is the sum of the two waves. As the movie shows, when the two waves are 180° out-of-phase with each other they cancel, and when they are exactly in-phase with each other they add together. As the two waves pass through each other, the net result alternates between zero and some maximum amplitude. However, this pattern simply oscillates; it does not travel to the right or the left, and thus it is called a "standing wave".

I have placed two dots on the string, one at an antinode and one at a node

Answered by Ankit K | 09 Apr, 2019, 23:07: PM
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