130
2 Quantum Mechanics – I
This value is in agreement with 13.60 obtained from Bohr’s theory of hydrogen atom.
2.86 (i) ΔxΔP x = (ii) ΔEΔt =
ΔP x =
Δx
; cΔP x = cP x =
c
Δx
=
197.3 MeV − fm
10 fm
≈ 20 MeV/c
T =
P
2
2M
=
c
2 p
2
2Mc 2 =
20
2
(2)(940)
= 0.21 MeV
2 Quantum Mechanics – I
This value is in agreement with 13.60 obtained from Bohr’s theory of hydrogen atom.
2.86 (i) ΔxΔP x = (ii) ΔEΔt =
ΔP x =
Δx
; cΔP x = cP x =
c
Δx
=
197.3 MeV − fm
10 fm
≈ 20 MeV/c
T =
P
2
2M
=
c
2 p
2
2Mc 2 =
20
2
(2)(940)
= 0.21 MeV