Question

iv. What happens when one end of a metal bar is heated?
a. Molecules at the heated end move as fast as at the other end.
b. Molecules at the heated end move faster than at the other end.
C. Molecules at the heated end move more slowly than at the other end.
d. Molecules at the heated end move towards the other end.​

Answer 1

Answer:

C. Molecules at the heated end move more slowly than at the other end.

Answer 2

if we heat one end of a metallic rod then due to heating motion of particals ( electron) increase

answer is b

molecules of heated end will move faster than other end