Question

1 physics two clocks are being tested against a standered clock locayionin a

Answer 1

The range of variation over the five days of observation is 166s for clock 1 & 32 s for clock 2.The average reading of clock is 1 is much closer to the standard time than the average reading of clock 2.But a clock zero error is not as significant for precision work as its variation,because a zero-error can always be easily corrected.Hence,clock 2 is preferred .