Questions
The equation of displacement of two waves are given as ; . Then what is the ratio of their amplitudes
detailed solution
Correct option is C
y1=10sin 3πt+π3 ...(i)and y2=5[sin3πt+3cos 3πt]=5×2 12×sin3πt+32×cos3πt=10 cosπ3sin3πt+sinπ3cosπt=10 sin 3πt+πt ... (ii) (∵ sin(A + B) = sinA cosB + cosA sinB)Comparing equation (i) and (ii) we get ratio of amplitude 1 : 1.Talk to our academic expert!
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