Question

A pendulum oscillates 20 times in 2 seconds then its time period is 0.1 sec.

Pls, tell the answer

Answer 1

Answer:

your answer already in your question that's 0.1 sec

Answer 2

$\huge{\boxed{\textsf{\textbf{\color{magenta}{Correct\: question:-}}}}}$

A pendulum oscillates 20 times in 2 seconds then it's time period is :-

( A ) 0.01 sec

( B ) 0.001 sec

( C ) 0.02 sec

( D ) 0.1 sec

$\huge{\boxed{\textsf{\textbf{\color{magenta}{Answer:-}}}}}$

$\color{cyan} \mapsto$ Time period [ T ] = $\rm\frac{Total\:time}{Total\: number\:of\:vibrations/oscillations}$

$\color{cyan} \mapsto$ Total time = 2 seconds

$\color{cyan}\mapsto$ Total number of vibrations/oscillations = 20

$\color{cyan} \mapsto$ $\frac{2}{20}$

$\color{cyan} \mapsto$ 0.1 sec

Therefore, if the pendulum oscillates 20 times in 2 seconds, then it's time period is 0.1 seconds [ Option D ].

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_SitaReddy❄️