Question:
Assertion: The diagonals of a || gm bisect each other.
Reason: If the diagonals of a || gm are equal and intersect at right angles, then the parallelogram is a square.
(a) Both Assertion and Reason are true and Reason is a correct explanation of Assertion.
(b) Both Assertion and Reason are true but Reason is not a correct explanation of Assertion.
(c) Assertion is true and Reason is false.
(d) Assertion is false and Reason is true.
Solution:
(b) Both Assertion and Reason are true but Reason is not a correct explanation of Assertion.
Explanation:
Clearly, assertion (A) is true.
We can easily prove reason (R). So, (R) is also true.
But, reason (R) does not give assertion (A).
Hence, the correct answer is (b)