Which of the following measures the most accurate time?

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Sand clock

Water clock

Quartz clock

Sundial

answer is C.

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Detailed Solution

Quartz clock measures the most accurate time.
Quarts clocks are the most modern equipment used to measure time. Since the advancement in the electronic field and space industries, it has become important to measure time more precisely. In a Quartz clock, the resonator of the clock emits a signal of frequency

32768 Hz

. This clock is also used in GPS systems.
On the other hand, Sand clocks, water clocks, and Sun dials are types of ancient clocks. Unfortunately, these time measurement instruments are not so accurate.

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