1.

(a) What is meant by the 'time-period' of a vibrating object? State its unit. (b) Define 'frequency' of a vibrating object. Name the unit in which frequency is measured. (c) A pendulum oscillates 40 times in 4 seconds. Calculate its (i) time-period. and (ii) frequency. Can we hear the sound produced by the oscillations of this pendulum? Give reason for your answer.

Answer»

(a) What is meant by the 'time-period' of a vibrating object? State its unit.

(b) Define 'frequency' of a vibrating object. Name the unit in which frequency is measured.

(c) A pendulum oscillates 40 times in 4 seconds. Calculate its (i) time-period. and (ii) frequency. Can we hear the sound produced by the oscillations of this pendulum? Give reason for your answer.



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