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Two clocks are being tsted against a standard clock located in the national laboratory. At 10: 00: 00 AM by the standard clock, the readings of the clocks are : If you are doing an experiment that requires prescision time interval measurements, whichof the two clock will you prefer ? (a)Clock A (b) Clock B (c) Either Clock A or B (d) Neithr A nor B |
| Answer» Solution :The AVERAGE reading of Clock A is much CLOSURE to the standard time than the average reading of clock B and the range of VIBRATION over the 5 days of observation is much smaller for clock B. As here clock's ZERO error is not significant for precision work, because a zero error can always be easily corrected. HENCE, clock B is to be preferred to clock A. | |