Saved Bookmarks
| 1. |
Two clocks are being tested against a standard clock located in a national laboratory. At 12:00:00 noon by the standard clock , the readings of the two clocks are : If you are doing an experiment that requires 'precision time interval' measurements, which of the two clocks will you prefer? c |
| Answer» Solution :The range of variation over the SEVEN days of observations is 164 s for CLOCK 1 , and 32 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 is 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 to preferred to clock 1. | |