Question
Physics Question on Heat Transfer
Solids expand on heating because
A
The K.E. of the atoms increases
B
The P.E. of the atoms increases
C
Total energy of the atoms increases
D
The K.E. of the atoms decreases
Answer
The K.E. of the atoms increases
Explanation
Solution
On heating the KE of the atoms increses and hence they are able to vibrate over a larger distance and hence their size increases.