shahdfouda174 shahdfouda174

22-10-2022
Physics

Answered

If the work done in stretching a wire 1mm is 2J, the work

necessary for another stretching a wire of the same material

but with double the radius of cross-section and half the length

by 1 mm is in joules.

(a) 16 (b) 8

(c) 4 (d) 1/4

Answer :

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