Physics- Class 12th : Unit Wise Important Questions Based on
Question Bank and NCERT Textbook
Useful for Upcoming Exams
Physics- You know Physics is the natural science that studies matter, its fundamental constituents, its motion and behavior through space and time, and the related entities of energy and force. Physics is one of the most fundamental scientific disciplines, with its main goal being to understand how the universe behaves. (wikipedia)
Students studying in any class want to get maximum marks in their subjects, for this they prepare well throughout the year, but even after this some such questions are asked in the main examinations which they do not practice beforehand. Can't write their answers with full confidence
Through this post, unit wise important questions related to Question Bank issued by Directorate of Public Instruction , Department of school education Govenment of Madhya pradesh and NCERT textbook for class 12th Physics students have been written for their practice.
All the students studying in class 12th in India and any other country outside India including MP board, up board, Rajasthan board, Chhattisgarh board can strengthen the knowledge of Physics not only by practicing these questions properly but also in examinations. can also get good marks
Physics- Class 12th chapters list
Chapter 1: Electric Charges And Fields
Chapter 2: Electrostatic Potential And Capacitance
Chapter 3:Current Electricity
Chapter 4:Moving Charges and Magnetism
Chapter 5:Magnetism and Matter
Chapter 6:Electromagnetic Induction
Chapter 7:Alternating Current
Chapter 8:Electromagnetic Waves
Chapter 9:Ray Optics and Optical Instruments
Chapter 10:Wave Optics
Chapter 11:Dual Nature of Radiation and Matter
Chapter 12:Atoms
Chapter 13: Nuclei
Chapter 14:Semiconductor Electronics: Materials, Devices, and Simple Circuits
Chapter 15:Communication Systems
Although there are chapters in Physics class 12 as above, some cuts have been made in the syllabus for the session 2022-23 by the Board of Secondary Education, Bhopal.
For students going to appear in class 12th of MP Board, questions will not be asked from the removed syllabus, but students preparing for JEE/NEET should read the entire syllabus thoroughly.
Chapter 1: Electric Charges And Fields
Points to Remember -
1. The energy which attracts light materials towards itself is called electrical energy.
2. It is also called frictional electric energy due to friction.
3. There are two types of charge. Money passion. Debt charge.
4. There is repulsion in charges and force of attraction in opposite charges.
5. The transfer of electrons is responsible for the charge of a substance. Matter becomes positively charged due to lack of electrons and negatively charged due to excess of electrons.
6 . A substance can be charged in three ways (a) friction (b) conduction (c) induction
7 . Quantumization of charge – The magnitude of charge in a substance is not continuous but is discrete. This charge can only be in the form of an absolute multiple of an electron. From the principle of quantization, q=ne |
8.Conservation of charge - According to the law of conservation of charge, the total charge of an isolated system remains unchanged with time.
9. Coulomb's law - The force of attraction or repulsion between two point charges is directly proportional to the product of the magnitudes of those charges and inversely proportional to the square of the distance between them.
F = (4t.) (2)
10 . Electric field intensity - The force experienced by a unit test positive charge located at a point of an electric field is called electric field intensity at that point. it is a vector F
11. Electric field lines - Electric field line is an imaginary straight curve drawn in an electric field on which any isolated independent unit positive charge can move. Electric field lines start with a positive charge and end at a negative charge.
12. Electric Dipole - A system of two equal and opposite charges located at a short distance is called electric dipole.
13. Electric flux - The number of field lines passing normal to a surface in an electric field is called electric flux. It is a scalar zodiac.
14 . Gauss Theorem - The value of the total electric flux passing through a closed surface is - times the total charge present in the vacuum inside that closed surface.
Choose the correct option -
1. When a charge 1 is placed in an electric field of intensity E, the force on it will be -
(a) F= E/q (b) F=q/E (c) F= qE (d) F= E-q
2. Distance from a point charge. But the electric field is directly proportional to -
(a) 1/r (b) 1/r2 (c) 1/r3 (d) 1/r4
3. An electric dipole (dipole moment p) is placed inside a hollow sphere. The electric flux associated with the sphere will be -
(a) q/ε0 (b) -q/ε0 (c) ZERO (d) p/ε0
---------------respectively
Important questions of other units of class 12th are being uploaded on this post continuously, keep visiting the website https://www.vimarshportal.in/ daily.
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