NEET Physics: Atoms and Nuclei — MCQ Test 7

Q6. What does the presence of discrete wavelengths in the hydrogen spectrum indicate?

Q7. In Rutherford’s experiment, what does the scattering of alpha-particles at small angles indicate?

Q8. In Bohr’s model, what prevents an electron from emitting radiant energy while revolving in a stable orbit?

Q9. Which of the following statements is correct about the ionization energy of a hydrogen atom in Bohr’s model?

Q10. In Rutherford’s scattering experiment, what does a small fraction of alpha-particles rebounding back indicate?

NEET Physics — Atoms and Nuclei

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Why does the Bohr model predict discrete spectral lines for hydrogen?

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About this NEET MCQ Test

This page provides a free online MCQ test for NEET Physics preparation, focusing specifically on the chapter Atoms and Nuclei. It contains 10 carefully selected multiple-choice questions (MCQs) designed to test your conceptual understanding and exam readiness.

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Key concepts covered in this specific test include Discrete, Spectral, Hydrogen, Required, Rutherford, and Bombarded.

Taking these timed MCQ tests helps you simulate the real NEET exam environment. Detailed step-by-step explanations are provided for every question to help you learn from your mistakes and strengthen your fundamentals.

Preview of Questions in this Test

Q1. Why does the Bohr model predict discrete spectral lines for hydrogen?

  • A. Continuous electron motion
  • B. Uniform charge distribution
  • C. Fixed energy level transitions
  • D. Random energy emissions

Q2. What is the energy required to ionize a hydrogen atom from its ground state? (Ground state energy = -13.6 eV)

  • A. 13.6 eV
  • B. 10.2 eV
  • C. 3.4 eV
  • D. 1.51 eV

Q3. What is the primary reason Rutherford’s model could not explain the line spectra of atoms?

  • A. Nucleus was too small
  • B. No quantized energy levels
  • C. Electrons had no charge
  • D. Positive charge was uniform

Q4. A hydrogen atom in the ground state is bombarded with a 12.5 eV electron beam. What is the maximum energy level the electron can reach? (Use \( E_n = -\frac{13.6}{n^2} \, \text{eV} \))

  • A. 2
  • B. 4
  • C. 1
  • D. 3

Q5. In a hydrogen atom, the total energy of an electron in the ground state is -13.6 eV. What is the magnitude of its potential energy?

  • A. 27.2 eV
  • B. 13.6 eV
  • C. 6.8 eV
  • D. 3.4 eV

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