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Damped Oscillations

Question

The natural frequency is
3 Hz
4 Hz
6 Hz
8 Hz

A

4 Hz

B

6 Hz

C

8 Hz

D

3 Hz

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Solution

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natural frequency $=$ number of oscillations $\div$ time taken
$\Rightarrow f_{n} = \frac{2}{0.5} = 4 H z$

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