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JEE MAIN 2021
25-02-21 S1
Question
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:
Select the correct option:
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
✓ Correct! Well done.
✗ Incorrect. Try again or view the solution.
Solution
A and R are true but R is not the correct explanation of A.
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Physics
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