A students performs an experiment to determine the youngโs modulus of a wire , exactly 2m long buy Searleโs method . In a particular reading ,the student measures the extension in the length of the wire to be 0.8 mm with an uncertainty of ยฑ0.05 mm at a load of exactly 1.0 kg the student also measures the diameter of the wire to be 0.4mm with an uncertainty of ยฑ 0.01mm. Take g = 10.0 m๐ ^(โ2) . The youngโs modulus obtained from the reading is A) (2.0 ยฑ0.3) x ใ10ใ^11 N๐^(โ2) B) (2.0 ยฑ0.2) x ใ10ใ^11 N๐^(โ2) C) (2.0 ยฑ0.1) x ใ10ใ^11 N๐^(โ2) D) (2.0 ยฑ0.05) x ใ10ใ^11 N๐^(โ2)
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