what is the definition based on the atomic clock
Answers
•An atomic clock is a clock that works with atoms, as opposed to most other clocks which are mechanical. The frequency comes from the crossing radiation of electrons. Atomic clocks are currently the most exact clocks of the world.Atomic clocks count how many times an atom wiggles back and forth.
•The principle of operation of an atomic clock is based on atomic physics: it measures the electromagnetic signal that electrons in atoms emit when they change energy levels. Early atomic clocks were based on masers at room temperature.
•Atomic clocks measure the actual length of a second, which is the base unit we use to calculate time. According to the International System of Units (SI), the time unit "second" is calculated by the time an atom in a defined state - comprised of the element caesium-133 - takes to oscillate 9,192,631,770 times.
In simple words- a precision clock that depends for its operation on an electrical oscillator regulated by the natural vibration frequencies of an atomic system (such as a beam of cesium atoms)
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