MCQ
The differential equation of SHM for a seconds pendulum is
- A$\frac{d^2 x}{d t^2}+ x =0$
- B$\frac{d^2 x}{d t^2}+\pi x=0$
- C$\frac{d^2 x}{d t^2}+4 \pi x=0$
- ✓$\frac{d^2 x}{d t^2}+\pi^2 x=0$.
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