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?

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Solution

Problem: 2 Marks

1. Given that 400 oscillations are made by the pendulum for 1 sec
∴ Frequency = 400 Hz
2. Time Period= 1/Frequency = 1/400 = 2.5 ms

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