MCQ
In a seconds pendulum, mass of bob is $30\, g$. If it is replaced by $90\, g$ mass. Then its time period will be ... $\sec$
  • A
    $1$
  • $2$
  • C
    $4$
  • D
    $3$

Answer

Correct option: B.
$2$
b
Time period is independent of mass of bob of pendulum.

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