Physics And Measurement Question 309
Question: One second is equal to
[MNR 1986]
Options:
A) 1650763.73 time periods of $ Kr $ clock
B) 652189.63 time periods of $ Kr $ clock
C) 1650763.73 time periods of $ Cs $ clock
D) 9192631770 time periods of $ Cs $ clock
Show Answer
Answer:
Correct Answer: D
Solution:
It is by standard definition.