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# Need help with uncertainties Watch

1. If a temperature (in Kelvins) has an uncertainty of +/- 0.1, what would happen to the uncertainty if you take the inverse of that temperature.

For example the temperature is 344.5 Kelvins +/- 0.1, and the multiplicative inverse of 344.5 is 0.0029. What would be uncertainty of the multiplicative inverse?
2. I think it would be 0.0029/344.5x100 = 8.42x10^-4, but I'm not entirely sure if that is correct!
3. (Original post by desslop)
If a temperature (in Kelvins) has an uncertainty of +/- 0.1, what would happen to the uncertainty if you take the inverse of that temperature.

For example the temperature is 344.5 Kelvins +/- 0.1, and the multiplicative inverse of 344.5 is 0.0029. What would be uncertainty of the multiplicative inverse?
The percentage uncertainty would the same AFAIK.

So:
0.1/344.5*100=0.029%
0.0029*0.029%=8.4*10^(-7)

so you'd get:
0.0029+/- 8.4*10^(-7)

This is how I was taught to work it out, I hope someone can correct me if I'm wrong

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