Question

A steel sphere is to be passed through a circular brass ring . The outer diameter of the spher e is25cm and the inner diameter of the hole is 24.9cm .

Answer 1

When metal sheet is heated distanced

o

when any two particle will become

which is given by linear expansion formula : d=d

o

(1+αΔT)

so if we consider two particle to be diametric opposite on either holes from above expression d increases with increases with increase in temorature