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Standard XII
Chemistry
Planck's Quantum Hypothesis
In Bohr's mod...
Question
In Bohr's model of hydrogen atom, the ratio of periods of revolution of an electron in
n
=
2
to
n
=
1
is
A
2
:
1
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B
4
:
1
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C
8
:
1
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D
16
:
1
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Solution
The correct option is
C
8
:
1
According to Bohr's atom model,
T
∝
n
3
Z
2
For Hydrogen atom
Z
=
1
,
⇒
T
∝
n
3
⇒
T
1
T
2
=
(
n
1
n
2
)
3
=
(
1
2
)
3
⇒
T
2
T
1
=
8
1
Hence, option
(
C
)
is correct.
Why this question?
This question is based on the concept of time period of electron in an orbit.
Suggest Corrections
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