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Two wires A and B are of the same material. Their lengths are in the ratio 1:2 and the diameter are in the ratio 2 : 1. If they are pulled by the same force, then increase in length will be in the ratio

(a) 2:1

(b) 1:4

(c) 1:8

(d) 8:1

Amit Saxena , 12 Years ago
Grade upto college level
anser 1 Answers
Arun Kumar
Hello Student,
elongation is proportional to lenght / Area
=>lenght/radius^2
=>elong. A/elong. B=1*4/2*1=2/1=2:1
Thanks & Regards
Arun Kumar, Btech, IIT delhi
Askiitians Faculty
Last Activity: 11 Years ago
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