Time standards are now based on atomic clocks. A promising second standard is based on pulsars, which are rotating neutr
Posted: Mon Jul 18, 2022 6:01 am
Time standards are now based on atomic clocks. A promisingsecond standard is based on pulsars, which arerotating neutron stars (highly compact stars consisting only ofneutrons). Some rotate at a rate that is highly stable, sending outa radio beacon that sweeps briefly across Earth once with eachrotation, like a lighthouse beacon. Suppose a pulsar rotates onceevery 1.743 206 448 872 75 ± 2 ms, where thetrailing ± 2 indicates the uncertainty in the lastdecimal place (it does not mean ± 2ms).
How many rotation does the pulsar makein 14.0 days?(b) How much time does the pulsar take to rotate exactly onemillion times? (Give your answer to at least 4 decimal places.)
(c) What is the associated uncertainty?
How many rotation does the pulsar makein 14.0 days?(b) How much time does the pulsar take to rotate exactly onemillion times? (Give your answer to at least 4 decimal places.)
(c) What is the associated uncertainty?