Question

the temperature of the body is measured by a thermometer Aarti 1 is equal to 20 degree Celsius plus minus 0.5 degree Celsius and 50 degree Celsius plus minus 0.5 degree Celsius calculate the temperature difference and the error in there​

Answer 1

Answer:

difference would be 30degree celcius and the error will be 1

Answer 2

The measured values,

t´ = t2 + t1

= ( 50°C$\frac{ + }{}$0.5°C) - (20°C$\frac{ + }{}$0.5°C)

t´ = 30°C $\frac{ + }{}$ 1°C

Hence the rule : When two quantities are added or subtracted the absolute error in the final result is the sum of the absolute errors in the individual quantities.

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