Copper of fixed volume V is drawn into wire of length l. when this wire is subjected to a constant force F, the extension produced in the wire is Deltal , which of the following graphs is a straight line?

Copper of fixed volume V is drawn into wire of length l. when this wir

1.	Copper of fixed volume V is drawn into wire of length l. when this wire is subjected to a constant force F, the extension produced in the wire is Deltal , which of the following graphs is a straight line?
Answer» `Deltal` versus `1//l` `Deltal` versus `l^2` `DELTA l` versus `1//l^2` `Delta l` versus l Solution :`Y=(Fl)/(A Deltal) or,Deltal=(Fl)/(AY)=(Fl^2)/(VY)` `THEREFORE Deltalpropl^2`