MCQ
Given below are two statement : one is labelled as Assertion $A$ and the other is labelled as Reason $R$.
Assertion $A$ : When a rod lying freely is heated, no thermal stress is developed in it.
Reason $R :$ On heating the length of the rod increases.
In the light of the above statements, choose the correct answer from the options given below
- ✓Both $A$ and $R$ are true but $R$ is $NOT$ the correct explanation of $A$
- B$A$ is false but $R$ is true
- C$A$ is true but $R$ is false
- DBoth $A$ and $R$ are true and $R$ is the correct explanation of $A$
