Question

what is the basis of working of caesium clock atomic clock.​

Answer 1

Inside a cesium atomic clock, cesium atoms are funneled down a tube where they pass through radio waves . ... The more finely tuned the radio wave frequency is to 9,192,631,770 cycles per second, the more cesium atoms reach the detector. The detector feeds information back into the radio wave generator

Cesium 133 is the element most commonly chosen for atomic clocks. To turn the cesium atomic resonance into an atomic clock, it is necessary to measure one of its transition or resonant frequencies accurately. ... When a cesium atom receives microwave energy at exactly the right frequency, it changes its energy state.