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Assertion: Two blocks A and B are connec...

Assertion: Two blocks A and B are connected at the two ends of an ideal spring as shown in figure. Initially, spring was released. Now block B is pressed. Linear momentum of the system will not remain constant till the spring reaches its initial natural length.

Reason: An external force will act from the wall on block A.

A

If both Assertion and Reason are correct and Reason is the correct explanation of Assertion.

B

If both Assertion and Reason are correct but Reason is not the correct explanation of Assertion.

C

If Assertion is true but Reason is false.

D

If Assertion is false but Reason is true.

Text Solution

Verified by Experts

The correct Answer is:
A
Linear momentum will not remain constant till spring will remain compressed. Therefore a force will act on block A from the wall.
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