NCERT Class 12/MCQ Questions for Class 12 Physics Chapter 12 Atoms Sample Test,Sample questions

Question:
An atom stays in an excited state for about:

1.10 micro seconds

2.10 milli seconds

3.10 nano seconds

4.10 seconds


Question:
Artificial radioactivity was discovered by:

1.Joliot

2.Becquerel

3.Pauli

4.None of the above


Question:
For ionization of excited Hydrogen atom, the, required energy is:

1.a little less than 13.6

2. equal to 13.6

3.more than 13.6

4.3.4 or less


Question:
Half-life of a substance depends on:

1.pressure

2.temperature

3.density

4.None of the these


Question:
Isobars have the same:

1.A

2.Z

3.N

4.All the above


Question:
Isotones have the same:

1.A

2.Z

3.Neutron

4.All the above


Question:
Natural radioactivity was discovered by:

1.Joliot

2.Becquerel

3.Pauli

4.None of the above


Question:
P-decay produces:

1.isobars

2.isotopes

3.isotones

4.All the above


Question:
The binding energy of 42He is about:

1.28.3 eV

2.28.3 MeV

3.28.3 J

4.2.83 MeV


Question:
The binding energy of a deuteron is about:

1.2.22 MeV

2. 2.22 J

3.2.22 eV

4.None of the these


Question:
The concept of electron spin was introduced by:

1.Becquerel

2.Goudsmit

3.Millikan

4.Uhlenbeek and Goudsmit


Question:
The energy equivalent to mass defect is called :

1.binding energy

2.internal energy

3.external energy

4.enthalpy


Question:
The energy equivalent to one atomic mass unit is :

1. 1.6 × 10-19 J

2.6.02 × 1023 J

3.9.31 MeV

4.931 MeV


Question:
The mass of a neutron is:

1.1.00866 u

2.1.0866 u

3.1.866 u

4.0.1866 u


Question:
The principle that a quantum orbital cannot be occupied by more than two electrons was given by:

1.Pauli

2.Millikan

3.Hund

4.None of the above


Question:
The total energy that will be released if a nucleus is built from its constituents is called the:

1.binding energy of the nucleus

2.binding energy of the solid

3.binding energy of the atom

4.None of the above


Question:
Transmutation of nuclei was discovered by:

1.Rutherford

2.Becquerel

3.Pauli

4.None of the above


Question:
Who explained the splitting of special lines in magnetic field?

1.Zeeman

2.Bohr

3.Summerfield

4.Einstein


More MCQS

  1. NCERT Societal Impact MCQ
  2. MCQ Questions for Class 12 Maths Chapter 1 Relations and Functions
  3. MCQ Questions for Class 12 Physics Chapter 1 Electric Charges and Field
  4. MCQ Questions for Class 12 Physics Chapter 2 Electrostatic Potential and Capacitance
  5. Current Electricity Class 12 MCQs Questions
  6. MCQ Questions for Class 12 Physics Chapter 4 Moving Charges and Magnetism
  7. MCQ Questions for Class 12 Physics Chapter 5 Magnetism and Matter
  8. MCQ Questions for Class 12 Physics Chapter 6 Electromagnetic Induction
  9. MCQ Questions for Class 12 Physics Chapter 7 Alternating Current
  10. MCQ Questions for Class 12 Physics Chapter 8 Electromagnetic Waves
  11. MCQ Questions for Class 12 Physics Chapter 9 Ray Optics and Optical Instruments
  12. MCQ Questions for Class 12 Physics Chapter 10 Wave Optics
  13. MCQ Questions for Class 12 Physics Chapter 11 Dual Nature of Radiation and Matter
  14. MCQ Questions for Class 12 Physics Chapter 12 Atoms
  15. MCQ Questions for Class 12 Physics Chapter 13 Nuclei
  16. MCQ Questions for Class 12 Physics Chapter 14 Semiconductor Electronics: Materials, Devices and Simple Circuits
  17. MCQ Questions for Class 12 Physics Chapter 15 Communication Systems
  18. MCQ Questions for Class 12 English
  19. MCQ Questions for Class 12 English Flamingo Chapter 3 Deep Water
  20. MCQ Questions for Class 12 English Flamingo Chapter 4 The Rattrap
  21. Human Geography: Nature and Scope Class 12 MCQs Questions
  22. MCQ Questions for Class 12 Geography Chapter 2 The World Population: Distribution, Density and Growth
Search
R4R Team
R4Rin Top Tutorials are Core Java,Hibernate ,Spring,Sturts.The content on R4R.in website is done by expert team not only with the help of books but along with the strong professional knowledge in all context like coding,designing, marketing,etc!