37.Which of the following cannot be used
for measurement of time?
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Answer:
Hence Blinking of eyes cannot be used for measurement of time. 2. Two clocks A and B are shown in Figure 13.1. Clock A has an hour and a minute hand, whereas clock B has an hour hand, minute hand as well as a second hand.
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Answer:
"A leaking tap" is the answer because we cannot estimate when will the drop fall.
where as
⇒ simple pendulum shows time by its to and fro motion.
⇒ in olden days the time is estimated by the shadow of an object
⇒ blinking of eyes is rarely seen which blinks by time unless by reflex actions
Explanation:
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