Q 2 Assertion A For standard measurement of time Caesium

Last updated: 6/12/2023

Q 2 Assertion A For standard measurement of time Caesium atomic clock is used Reason R The Caesium atomic clocks are very accurate In the caesium atomic clock the second is taken as the time needed for 9 192 631 770 vibrations of the radiation corresponding to the transition between the two hyperfine levels of the ground state of cancis 120