365837
Consider the radioactive decay of a moving radium nucleus. In the absence of external force if it disintegrates into a nucleus of radon and an alpha particle then the \(CM\) follows
1 Path \(A\)
2 Path \(B\)
3 Path \(C\)
4 Path \(D\)
Explanation:
Since external force acting on the system is zero so the \(CM\) moves along same direction.
PHXI07:SYSTEMS OF PARTICLES AND ROTATIONAL MOTION
365838
Assertion : A shell at rest, explodes. The centre of mass of fragments also shall move. Reason : In explosion the linear momentum of the system remains always conserved.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
Explosion is not due to external force. The centre of mass of the fragments can remain at rest due to symmetry. Here, there is conservation of linear momentum always in explosion. So correct option is (4).
365837
Consider the radioactive decay of a moving radium nucleus. In the absence of external force if it disintegrates into a nucleus of radon and an alpha particle then the \(CM\) follows
1 Path \(A\)
2 Path \(B\)
3 Path \(C\)
4 Path \(D\)
Explanation:
Since external force acting on the system is zero so the \(CM\) moves along same direction.
PHXI07:SYSTEMS OF PARTICLES AND ROTATIONAL MOTION
365838
Assertion : A shell at rest, explodes. The centre of mass of fragments also shall move. Reason : In explosion the linear momentum of the system remains always conserved.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
Explosion is not due to external force. The centre of mass of the fragments can remain at rest due to symmetry. Here, there is conservation of linear momentum always in explosion. So correct option is (4).
