A solid uniform metal bar of diameter D and length L is hanging vertically from its upper end. The elongation of the bar due to self-weight is

Proportional to L and inversely proportional to D2

Proportional to L2 and inversely proportional to D2

Proportional to L but independent of D

Proportional to L2 but independent of D

A solid uniform metal bar of diameter D and length L is hanging vertic

1.	A solid uniform metal bar of diameter D and length L is hanging vertically from its upper end. The elongation of the bar due to self-weight is
A.	Proportional to L and inversely proportional to D2
B.	Proportional to L2 and inversely proportional to D2
C.	Proportional to L but independent of D
D.	Proportional to L2 but independent of D
Answer» E.