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Questions  

When two displacements represented by y1=asin(ωt) and y2=b cos(ωt) are superimposed the motion is

a
simple harmonic with amplitude a2+b2
b
simple harmonic with amplitude (a+b)2
c
not a simple harmonic
d
simple harmonic with amplitude ab

detailed solution

Correct option is A

Here, y1=asinωty2=bcosωt=bsinωt+π2 Hence, resultant motion is SHM with amplitude a2+b2

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