Nuclear Physics MCQ

Nuclear Physics MCQ

  • Sharad Jaiswal
  • 12th Feb, 2021

We have listed here Best Nuclear Physics MCQ Questions for your basic knowledge of Nuclear Physics. This Nuclear Physics MCQ Test contains 30 multiple Choice Questions. You have to select the right answer to every question.

 

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Nuclear Physics MCQ Questions

1) What is the half life of radioactive nuclei?

  • A. 0.793λ
  • B.0.693 / λ
  • C.0.693λ
  • D.0.793 / λ

2) What is the average (mean) life for particle decay?

  • A. 1.445 times greater than half life
  • B.1.345 times greater than half life
  • C.1.145 times greater than half life
  • D.1.245 times greater than half life

3) What is nucleus?

  • A. Positive charge in an atom was concentrated in a small region
  • B.Negative charge in an atom was concentrated in a small region
  • C.Positive charge in an atom was concentrated in a extremely large region
  • D.None of these

4) Number of neutrons in the nucleus is called

  • A. neutron number (N)
  • B.atomic number (Z)
  • C.atomic mass number (A)
  • D.electron number (E)

5) What are the two main parts of an atom?

  • A. atom and molecule
  • B.nucleus and protons
  • C.molecule and electron
  • D.None of these

6) How many neutrons are in a Uranium-235 nucleus?

  • A. 235
  • B.143
  • C.146
  • D.92

7) What is the position of electrons?

  • A. inside the nucleus
  • B.outside the nucleus
  • C.both inside and outside the nucleus
  • D.at all of the above locations

8) Activity is proportional to number of

  • A. undecayed nuclei
  • B.daughter nuclei
  • C.decayed nuclei
  • D.father nuclei

9) 1 u is equal to

  • A. 2 × 10-27 kg
  • B.1.660 × 10-27 kg
  • C.5 × 10-27 kg
  • D.3 × 10-27 kg

10) The nucleons in a nucleus are attracted by

  • A. Magnetic force
  • B.Nuclear force
  • C.Electrostatic force
  • D.None of these

11) The average energy released per fission is

  • A. 200 eV
  • B.200 meV
  • C.200 MeV
  • D.None of these

12) Nuclear fission can be explained by

  • A. Quark model
  • B.Liquid drop model
  • C.Bohr atom model
  • D.All of the above

13) Identify the Isotopes property?

  • A. Same proton number and neutron number
  • B.Same neutron number but different proton number
  • C.Same proton number but different neutron number
  • D.None of these

14) The time taken by the radioactive element to reduce to 1/e times is

  • A. Mean life
  • B.Half life/2
  • C.Half life
  • D.Twice the mean life

15) Who was discovered electron?

  • A. Flemming
  • B.J. J. Thomson
  • C.Michael Faraday
  • D.None of these

16) Nuclear force is

  • A. Spin independent
  • B.Both charge and spin independent
  • C.Spin dependent but charge independent
  • D.Charge dependent

17) The elements which emit natural radioactivity are known as:

  • A. active elements
  • B.radioactive elements
  • C.radio elements
  • D.nuclear elements

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