Energy Levels and Hydrogen Spectrum NEET Questions

Physics - Atoms and Nuclei

Energy Levels and Hydrogen Spectrum MCQ Questions


7.
Which transition in the hydrogen atom produces the Lyman-alpha line?
A.
n=2 to n=1
B.
n=3 to n=2
C.
n=4 to n=3
D.
n=5 to n=4
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ANSWER :
B. n=3 to n=2
8.
The energy of an electron in an atom is:

NEET - 2016

A.
Continuous
B.
Discrete and quantized
C.
Infinite
D.
Always positive
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ANSWER :
B. Discrete and quantized
9.
According to Bohr’s model, the energy of an electron in a hydrogen atom is ___.
A.
Always positive
B.
Always negative
C.
Zero
D.
It depends on orbit size
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ANSWER :
B. Always negative
10.
According to Bohr’s model, the energy of an electron in the nth orbit of hydrogen is proportional to:

NEET - 2017

A.
n²
B.
1/n²
C.
n
D.
1/n
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ANSWER :
B. 1/n²
11.
The energy of an electron in the first excited state of hydrogen is approximately ___.
A.
-3.4 eV
B.
-13.6 eV
C.
-0.85 eV
D.
-1.51 eV
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ANSWER :
A. -3.4 eV
12.
Which transition in the hydrogen spectrum corresponds to the Lyman series?

NEET - 2018

A.
n₂ > 1 to n₁ = 1
B.
n₂ > 2 to n₁ = 2
C.
n₂ > 3 to n₁ = 3
D.
n₂ > 4 to n₁ = 4
😑 View Answer Rough Work Error
ANSWER :
A. n₂ > 1 to n₁ = 1