A pendulum oscillates 40 times in 4 second find it is time period and frequency
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★ A pendulum oscillates 40 times in 4 second. Find it's time period and frequency.
Given,
- Number of oscillations = 40 times
- Time taken = 4 second
To find,
- Time period = ?
- Frequency = ?
★ First, we will find frequency then, it will be possible to find out time period.
Formulas to be used,
- Frequency :
- Time period :
Solution,
→ Frequency :
= Frequency :
= Frequency :
→ Time period :
= Time period :
= Time period : 0.25
- Time period : Time taken by an object for one complete oscillation/cycle is called time period. The unit of time period is expressed in “seconds”.
- Frequency : Number of oscillations taken in a fixed given time is called frequency.
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vikram991:
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Answer:
Explanation:
Given that,
A simple pendulum makes 40 oscillations in 4 seconds.The frequency of a pendulum is equal to the number of oscillations per unit time . It is given by:
f=n/t
f=40/4 seconds
f=10 hertz
i.e,frequency = 10 hertz.
Let T is the time period. We know that the reciprocal of time period is called frequency.
t=1/f
t=1/10hertz
t=0.1
i.e, time period=0.1
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