My teacher told that Planck's constant is $h$ and nothing more. So please explain what actually plancks constant is?
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3Possible duplicate of What is the real interpretation of Planck's constant and what are its origins? – Joe D Apr 02 '17 at 13:48
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2Also see: Physical Interpretation of Planck's Constant – lemon Apr 02 '17 at 13:49
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Simply put, electrons orbit a nucleus at fixed distances. Let's call those distances a, 2a, 3a, etc. Planks constant is the amount of energy needed for the electron to move from a to 2a or from 2a to 3a. As you can probably tell by the name, this amount of energy is a constant.
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But according to bhor quantumn theory as number of orbitals increases the difference in enegy between the orbital decreases negatively.so ,how could you say that h is difference in energy between two orbitals ? How could you say that is a constant? – Kamal Jun 01 '17 at 17:03