How is time regulated in a wristwatch and a c | vedclass

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Question

(A) wristwatch is regulated by the periodic oscillations of a quartz crystal,which vibrates at a specific frequency when an electric current is applie

Vedclass · Accepted Answer

Wristwatch uses quartz crystal oscillations; Cesium clock uses atomic vibrations.

Vedclass · Answer

(A) wristwatch is regulated by the periodic oscillations of a quartz crystal,which vibrates at a specific frequency when an electric current is applied. In contrast,a cesium clock is regulated by the periodic vibrations of cesium-$133$ atoms,specifically the transition between two hyperfine energy levels of the ground state of the cesium-$133$ atom. This atomic vibration is extremely stable and serves as the international standard for defining the second.

How is time regulated in a wristwatch and a cesium clock?

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