Two waves y1=A1 sin (Q1) and y2=A2 sin (Q2) superimpose to form a resultant wave whose amplitude is - VgyanHub

Question:

Two waves y₁=A₁ sin (Q₁) and y₂=A₂ sin (Q₂) superimpose to form a resultant wave whose amplitude is

Options :

(a) √A1^2+A2^2+2A1A2 cos(β1-β2)
(b) √A1^2+A2^2+2A1A2 sin(β1-β2)
(c) A1+A2
(d) |A1+A2|

Answer :

(a) √A₁²+A₂²+2A₁A₂ cos(β1-β2)

Answer Steps :

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