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A narrow pulse (for example, a short pip...

A narrow pulse (for example, a short pip by a whistle) is sent across a medium. If the pulse rate is 1 after every 20 s (that is the whistle is blow for a split of second after every 20 s). Is the frequency of the note produced by the whistle equal to `1//20` or `0.05 Hz`?

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To determine the frequency of the note produced by the whistle, we need to analyze the information given in the question. ### Step-by-Step Solution: 1. **Understanding the Pulse Rate**: The problem states that a whistle is blown once every 20 seconds. This means that a single pulse of sound is generated every 20 seconds. 2. **Calculating Frequency**: Frequency (f) is defined as the number of occurrences of a repeating event per unit of time. In this case, the event is the blowing of the whistle (the generation of a pulse). ...
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