Question

(a): A thin rod and a thick rod made of the same material having the same length are given the same amount of heat $\theta$. Then the thin rod expands more.
(b): The linear expansion depends upon the initial length of the rod only.

• A. a and b are correct and b is correct explanation for a
• B. a and b are correct and b is not correct explanation for a
• C. a is true and b is false
• D. a is wrong and b is true

Answer 1

The correct option is C a is true and b is false

Since linear expansion depends on the nature of material change in temperature also, therefore, a is true but b is not a true statement.
Hence option (C).