If two waves having amplitudes 2A and A and same frequency and velocit – McqOptions

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1.	If two waves having amplitudes 2A and A and same frequency and velocity, propagate in the same direction in the same phase, the resulting amplitude will be [MP PET 1991; DPMT 1999]
A.	3A
B.	\[\sqrt{5}A\]
C.	\[\sqrt{2}A\]
D.	A
Answer» B. \[\sqrt{5}A\]

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