If you are preparing for CBSE Class 12 Board Exam Term 1 which will be an objective type questions paper, then you need to practice multiple choice questions of Class 12 Physics Chapterwise. In this article of AKVTutorials, you will get MCQ Questions for Class 12 Physics Chapter 12 Atoms with Answer Keys.
MCQ Questions for Class 12 Physics Chapter 12 Question No 1:
In Lyman series of hydrogen spectrum lies in the region:
Option A : Infrared
Option B : Visible
Option C : Ultraviolet
Option D : X-rays
Show/Hide Answer
Option C : Ultraviolet
MCQ Questions for Class 12 Physics Chapter 12 Question No 2:
The size of an atom is of the order of:
Option A : 10-8 m
Option B : 10-10 m
Option C : 10-3 m
Option D : 10-2 m
Show/Hide Answer
Option B : 10-10 m
MCQ Questions for Class 12 Physics Chapter 12 Question No 3:
Which one of the series of hydrogen sp
Option A : Lyman series
Option B : Balmer series
Option C : Paschen series
Option D : Bracket series
Show/Hide Answer
Option B : Balmer series
MCQ Questions for Class 12 Physics Chapter 12 Question No 4:
The Rutherford a-particle experiment shows that most of the a-particles pass through almost unscattered while are some are scattered through large angles. What information does it give about the structure of the atom?
Option A : Atom is hollow
Option B : The whole mass of the atom is concentrated in a small centre called nucleus
Option C : Nucleus is positively charged
Option D : All the above
Show/Hide Answer
Option D : All the above
MCQ Questions for Class 12 Physics Chapter 12 Question No 5:
Which of the following is true?
Option A : Lyman series is a continuous spectrum
Option B : Paschen series is a line spectrum in the infrared
Option C : Balmer series is a line spectrum in the ultraviolet
Option D : The spectral series formula can be derived from the Rutherford model of the hydrogen atom
Show/Hide Answer
Option B : Paschen series is a line spectrum in the infrared
MCQ Questions for Class 12 Physics Chapter 12 Question No 6:
When alpha particles are sent through a thin gold foil, most of them go straight through the foil, because:
Option A : Alpha particles are positively charged
Option B : Mass of alpha particle is more than of electron
Option C : Most of the part of an atom is empty space
Option D : Alpha particles moves with high velocity
Show/Hide Answer
Option C : Most of the part of an atom is empty space
MCQ Questions for Class 12 Physics Chapter 12 Question No 7:
The radius of an atomic nucleus have an order of
Option A : 10-8 m
Option B : 10-15 m
Option C : 10-12 m
Option D : 10-10 m
Show/Hide Answer
Option B : 10-15 m
MCQ Questions for Class 12 Physics Chapter 12 Question No 8:
In an experiment of scattering of alpha particle showed for
Option A : Electron
Option B : Proton
Option C : Neutron
Option D : Nucleus
Show/Hide Answer
Option D : Nucleus
MCQ Questions for Class 12 Physics Chapter 12 Question No 9:
The existence of positively charged nucleus was established by:
Option A : Bohr’s model of H-atom
Option B : Positive ray analysis
Option C : Scattering experiment
Option D : Thomson’s model of atom
Show/Hide Answer
Option C : Scattering experiment
MCQ Questions for Class 12 Physics Chapter 12 Question No 10:
According to Bohr’s postulates, an electrons revolve around the nucleus in
Option A : Dynamic
Option B : Stationary
Option C : Lower
Option D : First
Show/Hide Answer
Option B : Stationary
| CBSE Class 12 Physics Chapterwise MCQ |
|---|
| 1 : Electric Charge & Fields MCQs | 1 to 10 | 11 to 20 |
| 2 : Electrostatics Potential and Capacitance MCQs | 1 to 10 | 11 to 20 |
| 3 : Current Electricity MCQs | 1 to 10 | 11 to 20 |
| 4 : Moving charges and Magnetism MCQs | 1 to 10 | 11 to 20 |
| 5 : Magnetism and Matter MCQs | 1 to 10 | 11 to 20 |
| 6 : Electromagnetic Induction MCQs | 1 to 10 | 11 to 20 |
| 7 : Alternating Current MCQs | 1 to 10 | 11 to 20 |
| 8 : Electromagnetic Waves MCQs | 1 to 10 | 11 to 20 |
| 9 : Ray Optics and Optical Instruments MCQs | 1 to 10 | 11 to 20 |
| 10 : Wave Optics MCQs | 1 to 10 | 11 to 20 |
| 11 : Dual Nature of Radiation MCQs | 1 to 10 | 11 to 20 |
| 12 : Atoms MCQs | 1 to 10 | 11 to 20 |
| 13 : Nuclei MCQs | 1 to 10 | 11 to 20 |
| 14 : Semi Conductor Electronics MCQs | 1 to 10 | 11 to 20 |
| 15 : Communication Systems MCQs | 1 to 10 | 11 to 20 |
