The sound from a honey bee is produced when it vibrates its wings at an average rate of 400 vibrations per second. What is the time period of the vibration in milliseconds?

2.5

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3.5

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4.5

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5.5

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Solution

The correct option is A 2.5
Given that 400 oscillations are made in 1 second.
$∴$ Frequency $= 400 H z$ .
$T i m e P e r i o d = \frac{1}{F r e q u e n c y} = \frac{1}{400} = 2.5 \times 10^{- 3} = 2.5 m s$

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The sound from a honey bee is produced when it vibrates its wings at an average rate of 400 vibrations per second. What is the time period of the vibration in milliseconds?

The correct option is A 2.5Given that 400 oscillations are made in 1 second. ∴Frequency=400 Hz. Time Period=1Frequency=1400=2.5×10−3=2.5 ms

The correct option is A 2.5
Given that 400 oscillations are made in 1 second.
$∴$ Frequency $= 400 H z$ .
$T i m e P e r i o d = \frac{1}{F r e q u e n c y} = \frac{1}{400} = 2.5 \times 10^{- 3} = 2.5 m s$