A steel rod of L_0 metre and coefficient of linear expansion 'alpha' rests on a smooth horizontal surface.The longitudinal strain developed in the rod is (when heated from 0^(@) C to 100°C )

A steel rod of L_0 metre and coefficient of linear expansion 'alpha' r

1.	A steel rod of L_0 metre and coefficient of linear expansion 'alpha' rests on a smooth horizontal surface.The longitudinal strain developed in the rod is (when heated from 0^(@) C to 100°C )
Answer» `100 L_(0) alpha` `200 L_(0) alpha` `50 L_(0) alpha` zero Answer :D