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10-1.Thermometry, Thermal Expansion and Calorimetry
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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
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 $A$
(JEE MAIN-2021)
Solution
$A$ and $R$ are true but $R$ is not the correct explanation of $A$
Standard 11
Physics
