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:

The answer is-

d. Molecules at the heated end move towards the other end.

Answer 2

Answer:

When one end is of a metal is heated the molecules at the heated end move faster than at the other end. That is b) part is the right answer.

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