MCQ
The graphs in figure show that a quantity $y$ varies with displacement $d$ in a system undergoing simple harmonic motion. Which graphs best represents the relationship obtained when $y$ is The time


- A$I$
- B$II$
- C$III$
- ✓$IV$

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$X \stackrel{a}{\longrightarrow} Y$
$Y \underset{2 \beta}{\longrightarrow} Z$
then


