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प्रश्न
State two factors which determine the time period of a simple pendulum.
उत्तर
Factors on which time period of a simple pendulum depends:
T = `2πsqrt("l"/"g")`
- T α `sqrt"l"` or T2 α l i.e., if length increases, the time period increases. That is why in summer pendulum of the clock goes slow.
- That is why when the clock is taken to a mountain where ‘g’ decreases with altitude, the time period increases and pendulum takes more time to complete an oscillation, and hence the clock goes slow.
T α `1/sqrt"g"` - Mass or material of bob: Time period of a simple pendulum is independent of mass.
- Amplitude: Time period of a simple pendulum is independent of amplitude. So long as swing is not too large.
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Oscillation
