Correct Answer - Option 4 : force × distance × time
Concept:
Planck’s constant: It is a constant value that represents the quantum of electromagnetic radiations.
It relates the energy carried by a photon to its frequency. The expression of the energy of a photon is given as
E = hν.
\(\therefore h=\frac{E}{ν }\)
h is Planck's constant, ν is the frequency of radiation
Hence, the unit of Planck's constant is
\(h=\frac{Joule}{1/sec}=Joule\cdot sec\)
The value of Planck's constant is 6.6 × 10-34 Js.
Explanation:
- Force × distance = work done
- The unit of work done is Joule.
- Therefore the unit of
- Force × distance × time = Joule × second
- This is the same unit as Planck's constant.
So, the correct option is Force × distance × time
