Question

The time period of a pendulum is 0.5 s. No of oscillations of the pendulum is 20. Find the time taken to complete 20 oscillations (with explanation pls)

Answer 1

• Time period=0.5s
• No if oscillations=20

`\\ \sf\longmapsto Time\:period=(Time\:taken)/(No\:of\; oscillations)`

`\\ \sf\longmapsto Time\:taken=No\:of\: oscillations (Time\: period)`

`\\ \sf\longmapsto Time\:taken=20(0.5)`

`\\ \sf\longmapsto Time\:taken=10s`

Answer 2

Given :

• Time period = 0.5s
• Number of oscillations = 20

What To Find :

• Time taken to complete 20 oscillations.

Formula Using :

`\begin{gathered} {\underline{\boxed{ \rm {\red{Time \: period \: = \: (Time \: \: taken)/(Number \: of \: oscillations) }}}}}\end{gathered}`

`\begin{gathered} {\underline{\boxed{ \rm {\purple{Time \: taken \: = \: Number \: of \: oscillations \: (Time \: period)}}}}}\end{gathered}`

Solution :

`\large \rightarrow \: {\rm {{{\color{orange}{Time \: taken \: = \: 20 (0.5)}}}}}`

`\large \rightarrow \: {\rm {{{\color{orange}{Time \: taken \: = \: 10s}}}}}`