$Assertion :$ The amplitude of an oscillating pendulum decreases gradually with time
$Reason :$ The frequency of the pendulum decreases with time.
A
If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.
B
If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.
C
If the Assertion is correct but Reason is incorrect.
D
If both the Assertion and Reason are incorrect.
AIIMS 2003, Easy
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C
If the Assertion is correct but Reason is incorrect.
c The amplitude of an oscillating pendulum decreases with time due to friction of air. In absence of air, its frequency and amplitude will remain constant.
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