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PHYSICS
Class 11
Short Questions
Chapter 7
Q 1 Give two applications in which resonance plays an important role.

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Q 2 What happens to the time period of a simple pendulum if its length is doubled?

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Q 3 What will be the frequency of a simple pendulum if its length is ‘1 m’.

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Q 4 Give one practical example each of free and forced oscillation.

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Q 5 A simple pendulum set into vibrations and left untouched, eventually stops, why?

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Q 6 Explain why in S.H.M the acceleration is zero when the velocity is greatest?

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Q 7 Is there a connection between F and x in mass spring system? Explain.

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Q 8 What happens to the frequency of a simple pendulum as its oscillations die down from large amplitude to small?

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Q 9 A singer, holding a note of right frequency, can shatter a glass. Explain.

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