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An electron is confined within a region of length
PHYSICS · Single correct · CBSE · Physics · Atoms · Atoms
Problem
An electron is confined within a region of length
0.05
nm
0.05\,\text{nm}
0.05
nm
. Estimate the minimum kinetic energy it must possess due to this confinement. (Take
h
=
6.63
×
10
−
34
J
s
h = 6.63\times10^{-34}\,\text{J\,s}
h
=
6.63
×
1
0
−
34
J
s
,
m
e
=
9.11
×
10
−
31
kg
m_e = 9.11\times10^{-31}\,\text{kg}
m
e
=
9.11
×
1
0
−
31
kg
,
1
eV
=
1.6
×
10
−
19
J
1\,\text{eV} = 1.6\times10^{-19}\,\text{J}
1
eV
=
1.6
×
1
0
−
19
J
.) (a)
7.6
eV
7.6\,\text{eV}
7.6
eV
(b)
38
eV
38\,\text{eV}
38
eV
(c)
3.8
eV
3.8\,\text{eV}
3.8
eV
(d)
1.9
eV
1.9\,\text{eV}
1.9
eV
Related theory
Matter Waves
Wave particle duality
Bohr's postulates
De Broglie explanation of Bohr quantisation
Atoms
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