A) Only (IV) does not represent SHM
B) (I) and (III)
C) (I) and (II)
D) Only (I)
Correct Answer: B
Solution :
For a simple harmonic motion \[\frac{{{d}^{2}}y}{d{{t}^{2}}}\propto -y\] Hence, equation \[y=\sin \omega t-\cos \omega t\]and \[y=5\cos \left( \frac{3\pi }{4}-3\omega t \right)\] are satisfying this condition and equation \[y=1+\omega t+{{\omega }^{2}}{{t}^{2}}\] is not periodic and \[y={{\sin }^{3}}\omega t\] is periodic but not SHM. Option (c) is correct.You need to login to perform this action.
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