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प्रश्न
State any two Bohr’s postulates and write the energy value of the ground state of the hydrogen atom.
उत्तर
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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संबंधित प्रश्न
if `E_p` and `E_k` represent potential energy and kinetic energy respectively, of an orbital electron, then, according to B9hr's theory:
a)`E_k = -E_p"/"2`
b) `E_k = -E_p`
c) `E_k = -2E_p`
d) `E_k = 2E_p`
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