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Assertion : Even though net external for...

Assertion : Even though net external force on a body is zero, momentum need not be conserved.
Reason : The internal interaction between particles of a body cancels out momentum of each other

A

If both assertion and reason are true and reason is the correct explanation of assertion.

B

If both assertion and reason are true but reason is the currect explanation of assertion.

C

If assertion is true but reason is false.

D

If both assertion and reason are false.

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question, we need to analyze both the assertion and the reason given. ### Step 1: Analyze the Assertion The assertion states: "Even though net external force on a body is zero, momentum need not be conserved." - According to the law of conservation of momentum, if the net external force acting on a system is zero, the total momentum of that system remains constant. Therefore, the assertion is **incorrect**. ### Step 2: Analyze the Reason The reason states: "The internal interaction between particles of a body cancels out momentum of each other." - While it is true that internal forces can act between particles of a system, these forces do not affect the total momentum of the system as a whole. Internal forces are equal and opposite (Newton's third law), hence they do not cancel out the total momentum. Thus, the reason is also **incorrect**. ### Step 3: Conclusion Since both the assertion and the reason are incorrect, we conclude that the correct answer to the question is that both statements are false. ### Final Answer: Both the assertion and the reason are incorrect. ---
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