The temperature of two bodies measured by a thermometer are t1=200C+0.50C and t2=500C±0.5 0C. The error in temperature difference is

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± 10C

±20C

±30C

±40C

answer is A.

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Detailed Solution

he temperature difference is given by t'=t2−t1=(500C±0.50C)−(200C±0.50C)t'=300C±10C

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