Question

Which of the following cannot be used for the measurement of time?
(a) A leaking tap
(b) Simple pendulum
(c) Shadow of an object during the day
(d) Blinking of eyes

Answer 1

Answer:

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A leaking tap

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Answer 2

Answer:

A leaking tap

Explanation:

"A leaking tap" is the answer because we cannot estimate when will the drop fall. ⇒ simple pendulum shows time by its to and fro motion.