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In the above question, what is the diffe...

In the above question, what is the difference in lengths of the two pieses of wire ?

Text Solution

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The correct Answer is:
`(12.2 +- 0.3) cm`
Here, `I_1 =(35.2+- 0.1)cm`
`I_2 =(47.4+- 0.2)cm`
`I_2 -I_1 =47.4 -35.2 =12.2 cm`
Error in difference of lengths
`=+-(0.1+0.2)cm`
`= +- 0.3cm`
`I_1 - I_2 =(12.2 +- 0.3)cm`
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