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
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
- [JEE MAIN 2021]
- A
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
- D
Both $A$ and $R$ are true and $R$ is the correct explanation of $A$
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- [AIIMS 2000]