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Question
State any two Bohr’s postulates and write the energy value of the ground state of the hydrogen atom.
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Solution
Bohr’s postulates
(1) Electrons revolve in only those orbits for which the angular momentum is an integral multiple of `h/(2pi)` .
`l = m"v"r = (nh)/(2pi)`
(2) When electrons jump from higher orbit to lower orbit they radiate energy in the form of `h"v"` ,
where h is the Planck’s constant and `"v"` is frequency `E_2 - E_1 = "hv"`
Energy of ground state
`E = -13.6 eV`
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