Question

Which of the following functions does not represent S.H.M. ?

• A. sin 2ωt
• B. sin²ωt
• C. sin ωt+ 2cos ωt
• D. sin ωt + cos 2ωt

Answer 1

Answer: (D)

sin ωt + cos 2ωt

Answer 2

The motion will be SHM only if acceleration (or $\frac{d^{2}y}{dt^{2}}$) α − y.

This is not true for (4) only