Units and Measurement
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Question : 26
Total: 33
It is claimed that two cesium clocks, if allowed to run for 100 years, free from any disturbance, may differ by only about 0.02 s. What does this imply for the accuracy of the standard cesium clock in measuring a time-interval of 1 s?
Solution:
Here, the difference shown by two clocks in 100 years = 0.02 s
Therefore, the difference, the two clocks will show in 1s
=
=
= 6.34 × 10 − 12 s ≃ 10 − 11 s
Therefore, accuracy shown by the atomic clock =10 – 11 s 10 11
Therefore, the difference, the two clocks will show in 1s
Therefore, accuracy shown by the atomic clock =
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