Question

There are atomic clocks capable of measuring time with
an accuracy of 1 part in 10¹¹. If two such clocks are
operated with precision, then after running for 5000 yr,
these will record a difference of
(a) nearly 2 s
(b) 1 day
(d) 1 yr
(c) 1011s​

Answer 1

Answer:

option a) 2 sec they very accurate