Two clocks are being tested against …
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Yogita Ingle 5 years, 1 month ago
The range of variation over the seven days of observation is 162 s for clock 1, and 31 s for clock 2. the average reading of clock 1 is much closer to the standard time than the average reading of clock 2. The important point is that a clock's zero error is not as significant for precision work as its variation, because a 'zero-error' can always be easily corrected. Hence closk 2 is to be preferred to clock 1.
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