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Atomic and Nuclear Physics JEE physics - Atomic and Nuclear Physics

CBSE - STD 12 Science - JEE physics (CBSE - English Medium). 174 questions in this chapter.

Question types

Atomic and Nuclear Physics question types

174 questions across 1 question group — pick any mix to generate a JEE physics paper with step-by-step answer keys.

174
Questions
1
Question groups
5
Question types
Sample Questions

Atomic and Nuclear Physics questions

One sample from each question group in this chapter. Select any group above to see the full set with answer keys.

Q 1MCQ1 Mark
The energy of the highest energy photon of Balmer series of hydrogen spectrum is close to
  • A
    $13.6 eV$
  • ✓
    $3.4 eV$
  • C
    $1.5 eV$
  • D
    $0.85 eV$

Answer: B.

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Q 2MCQ1 Mark
In the spectrum of hydrogen atom, the ratio of the longest wavelength in Lyman series to the longest wavelength in the Balmer series is
  • ✓
    $5 / 27$
  • B
    $1 / 93$
  • C
    $4 / 9$
  • D
    $3 / 2$

Answer: A.

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Q 3MCQ1 Mark
The ratio of the wavelengths for $2 \rightarrow 1$ transition in $L i, H e$ and $H$ is
  • A
    $1: 2: 3$
  • B
    $1: 4: 9$
  • ✓
    $4: 9: 36$
  • D
    $3: 2: 1$

Answer: C.

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Q 4MCQ1 Mark
In the following transitions, which one has higher frequency
  • A
    $3-2$
  • B
    $4-3$
  • C
    $4-2$
  • ✓
    $3-1$

Answer: D.

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Q 5MCQ1 Mark
Energy of an electron in an excited hydrogen atom is $-3.4 eV$. Its angular momentum will be: $h=6.626 \times 10^{-34} J -s$
  • A
    $1.11 \times 10^{34} J sec$
  • B
    $1.51 \times 10^{-31} J sec$
  • ✓
    $2.11 \times 10^{-34} J sec$
  • D
    $3.72 \times 10^{-34} J sec$

Answer: C.

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