Questions
Which of the following expression does not represent SHM?
a
A cos ωt
b
A sin 2 ωt
c
A sin ωt + B cos ωt
d
A sin2 ωt
detailed solution
Correct option is D
For SHM, d2ydt2 ∝ -yIf y = A sin2 ωt dydt = (2A sin ωt cos ωt)ω = = Aω sin 2 ωtd2ydt2 = +2 Aω2cos 2 ωti.e., d2ydt2 is not proportional to -yTalk to our academic expert!
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