Question : The unit of Planck's Constant is:
Option 1: Js
Option 2: Js-2
Option 3: J/s
Option 4: Js2
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Correct Answer: Js
Solution : The correct answer is Js.
Planck's Constant is defined as the ratio of the energy of a quantum of electromagnetic radiation to the frequency. The unit of Planck's Constant is Joule-second (Js). The unit of energy is Joule, and the SI unit of frequency is per second. The value of the Planck constant is 6.62607015×10−34 joule-second.
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