A pendulum suspended from ceiling of a train has a period T , when train is at rest. When train is a

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13.Oscillations

easy

A pendulum suspended from the ceiling of a train has a period $T$, when the train is at rest. When the train is accelerating with a uniform acceleration a, the period of oscillation will

Increase

Decrease

Remain unaffected

Become infinite

Solution

(b) Initially time period was $T = 2\pi \sqrt {\frac{l}{g}} $.
When train accelerates, the effective value of $g$ becomes $\sqrt {({g^2} + {a^2})} $ which is greater than $g$
Hence, new time period, becomes less than the initial time period.

Standard 11

Physics

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medium

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hard

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easy

The length of a simple pendulum is increased by $1\%$. Its time period will

easy

A pendulum suspended from the ceiling of a train has a period $T$, when the train is at rest. When the train is accelerating with a uniform acceleration a, the period of oscillation will

Solution

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