# A train whistle blows every 10 seconds. What is the frequency of the whistle?

##### 2 Answers

Apr 29, 2018

#### Explanation:

Frequency is inversely proportional to time period, so:

So the frequency is

This is because Hertz, or frequency is defined as "events per second". As there is 1 event every 10 seconds it has a frequency of

Apr 29, 2018

#### Explanation:

Since the train whistle blows every **period** of the whistle is

Frequency is inversely proportional to period, and the equation is:

#T# is the period in seconds

So here, the frequency will be