Question

The expansion in an object on heating depends on :

• A. the original dimensions
• B. increase in temperature
• C. the material of which the object is made
• D. all of the above

Answer 1

The correct option is D

all of the above

1. Expansion is one of the effects of heat.
2. Matter in all forms -solid, liquid or gas expands on heating.
3. Expansion due to heat is known as thermal expansion. Objects expand on absorbing heat energy.
4. The expansion of an object depends on three factors.

I. Original dimensions

ii. Increase in temperature

iii. Material of which it is made.

Hence, option D is correct.