Physics · 2021
JEE Main · 25 February 2021, Shift 1 · Q9
Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R. Assertion A: When a rod lying freely is heated,…
Given below are two statements : 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 :
Official answer
(2)
Both A and R are true but R is NOT the correct explanation of A
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JEE Main 2021 Physics question, with the answer from NTA’s final answer key. Where our answers come from.