Question

in stationary wave ,what is the phase difference between two particles of two consecutive loops​

Answer 1

answer : 180°

explanation : we know, stationary wave is the superposition of two wave of same amplitude and frequency but both move in opposite directions.

e.g., if there are two wave, $y_1=Asin(\omega t - kx)$ and $y_2=Asin(\omega t+kx)$

then, stationary wave is y = $y_1+y_2$

or, $y=Asin(\omega t -kx)+Asin(\omega t+kx)$

or, $y=2Asin\omega tcoskx$

or, $y=|2Acoskx|sin\omega t$

here it is clear that, phase difference between two particles of two consecutive loops is 180°