What is the frequency of a vibrating body whose time-period is 0.05 second?

10 Hz

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20 Hz

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40 Hz

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none

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Solution

The correct option is B 20 Hz
$f = \frac{1}{t} = \frac{1}{0.05} = \frac{100}{5} = 20 H z$

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Similar questions

(a) What is a vibration (or an oscillation)? Define 'amplitude' of vibration of an object.

(b) What is the frequency of a vibrating body whose time-period is 0.05 second ?

25 H z

s e c

2.5

0.05

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