Alil help on this please?
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Oscillations question watch
- Thread Starter
- 22-01-2014 02:02
- 22-01-2014 18:03
The question is referring indirectly to "beat" frequency.
Have you heard of this, and do you know how to calculate it from two given, slightly different frequencies?
It can also be worked out using a bit of common sense by considering that each time the 1.9s pendulum comes back the other one is 0.1s further behind it.
How many times must it come back before the slower pendulum is one whole oscillation behind?Last edited by Stonebridge; 22-01-2014 at 18:15.
- 22-01-2014 19:41
The 1.9 second pendulum has a time period of 0.1 seconds faster than the 2.0 second pendulum. Therefore, after 20 swings of it, it will have taken the same amount of time to do so as the 2.0 second pendulum to do 19 swings. 1.9*20 =38, 2.0*1.9 = 38
- 22-01-2014 19:52
The idea is to help the poster do it her self, and not do it for her..