Question

(a) If both the assertion and the reason
are true and the reason is the correct
explanation of assertion.
(b) If both the assertion and the reason are
true, but the reason is not the correct ex-
planation of the assertion.
(c) Assertion is true, but the reason is false.
(d) Assertion is false, but the reason is true.
1. Assertion: The sum of the clockwise
moments is equal to the sum of the
anticlockwise moments.
Reason: The principle of conservation of
momentum is valid if the external force on
the system is zero.
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Answer 1

both A and R are correct but R is not correct explanation of A