Question

Mark the correct statement regarding thermal expansion

• A. Increase in length depends upon to nature of to material
• B. Increase in length is directly proportional to the original length of the rod
• C. Increase in length due to thermal expansion is directly proportional to the rise in temperature
• D. All of the above

Answer 1

The correct option is D All of the above

All the above statements are correct. The greater the original length of the rod, the greater the increase in length.
The greater is the rise in temperature, the greater is the increase in length.