- #1
fisico30
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Hello Forum,
it is well know that the sum of two identical sinusoidal waves propagating in opposite direction, with zero relative phase, create a standing wave:
Phi1(x,t)=sin(kx+wt+theta1)
Phi2(x,t)=sin(kx-wt+theta2)
with theta1=theta2, w1=w2 (same angular frequency).
Phi_tot=Phi1+Phi2=standing wave where the space and time part are separate:
Q1: what if the two wave don't have identical phase, i.e. theta1 not equal to theta2?
I read somewhere that it is possible to sum two standing waves and get a propagating wave...How? Do the two standing waves need to have different amplitudes or different relative phase?
thanks
fisico30
it is well know that the sum of two identical sinusoidal waves propagating in opposite direction, with zero relative phase, create a standing wave:
Phi1(x,t)=sin(kx+wt+theta1)
Phi2(x,t)=sin(kx-wt+theta2)
with theta1=theta2, w1=w2 (same angular frequency).
Phi_tot=Phi1+Phi2=standing wave where the space and time part are separate:
Q1: what if the two wave don't have identical phase, i.e. theta1 not equal to theta2?
I read somewhere that it is possible to sum two standing waves and get a propagating wave...How? Do the two standing waves need to have different amplitudes or different relative phase?
thanks
fisico30