The following questions given below consist of an "Assertion"
A
and "Reason" (R) Type questions. Use the following Key to choose the appropriate answer. Assertion: A shell of mass 
is at rest initially. It explodes into three fragments having masses in the ratio 2:2:1. The fragments having equal masses fly off along mutually perpendicular directions with speed 
. The speed of the third (lighter) fragment will be 
Reason: The momentum of a system of particles is conserved if no external force acts on it. If both Assertion and Reason are True & the Reason is a correct explanation of the Assertion.
is at rest initially. It explodes into three fragments having masses in the ratio 2:2:1. The fragments having equal masses fly off along mutually perpendicular directions with speed . The speed of the third (lighter) fragment will be Reason: The momentum of a system of particles is conserved if no external force acts on it. If both Assertion and Reason are True & the Reason is a correct explanation of the Assertion.
B
If both Assertion and Reason are True but Reason is not a correct explanation of the Assertion.
C
If Assertion is True but the Reason is False.
D
If both Assertion and Reason are False.
Text Solution
Verified by ExpertsThe correct answer is:
CHECK THE SOLUTION.
:
Assertion and reason both are correct; momentum of a system or particle is conserved if no force acts on it.
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