PG-062 • CBSE Class 12 Physics • Electric Charges and Fields Electric Flux Through Open and Closed Surfaces: Comparison Problems Electric-flux questions often look similar but depend on one crucial distinction: Is the surface open or closed? This guide compares the cases students most often confuse — surface orientation, area vectors, enclosed charge, external charge, … Read more
PG-061 • CBSE Class 12 Physics • Electric Charges and Fields When Gauss Law Simplifies an Electric Field Problem Gauss’s law is always true, but it is not always useful for calculating electric field. The real skill is recognising when symmetry lets you take the electric field outside the flux integral. This guide shows how … Read more
[PDF] Physics Practical Class 12 Viva Questions Here you will find viva questions for class 12 physics practicals. Experiment wise viva questions are provided with answers. 2. Measurement of Electromotive Force and Potential Difference 3. Galvanometer, Ammeter and Voltmeter 4. Frequency of AC (Alternating Current) Mains 5. Focal Length of Spherical Mirrors 6. Focal Length … Read more
[PDF] Download Important Diagrams for CBSE Class 12 Physics Here we are providing Important Diagrams for CBSE Class 12 Physics. All the important diagrams related to CBSE Class 12 Physics are covered in this article. Students are suggested to go through all these important diagrams before their exam. This is very useful for last minute … Read more
Case Study Question for Class 12 Physics Chapter 7 Alternating Current Question 1: Read the para given below and answer the questions that follow: Resonant Series LCR Circuit. When the frequency of ac supply is such that the inductive reactance and capacitive reactance become equal, the impedance of the series LCR circuit is equal to … Read more
Case Study Question for Class 12 Physics Chapter 6 Electromagnetic Induction Question 1: Read the para given below and answer the questions that follow: Self Induction. When a current I flows through a coil, flux linked with it is φ = LI, where L is a constant known as self inductance of the coil. Any … Read more
Case Study Questions for Class 12 Physics Chapter 5 Magnetism and Matter Case Study Question 1: Read the following case/passage and answer the following questions: Elements of the Earth’s Magnetic Field. The earth’s magnetic field at a point on its surface is usually characterized by three quantities: (a) declination (b) inclination or dip and (c) … Read more
Case Study Questions for Class 12 Physics Chapter 10 Wave Optics Question 1: Diffraction of Light:A and B went to purchase a ticket of a music programme. But unfortunately only one ticket was left. They purchased the single ticket and decided that A would be in the hall during the 1st half and B during … Read more
Case Study Questions for Class 12 Physics Chapter 8 Electromagnetic Waves Question 1: Laser: Electromagnetic radiation is a natural phenomenon found in almost all areas of daily life, from radio waves to sunlight to x-rays. Laser radiation – like all light – is also a form of electromagnetic radiation. Electromagnetic radiation that has a wavelength … Read more
Case Study Questions for Class 12 Physics Chapter 14 Semiconductor Electronics Question 1: Light Emitting Diode:It is a heavily doped p-n junction which under forward bias emits spontaneous radiation. The diode is encapsulated with a transparent cover so that emitted light can come out. When the diode is forward biased, electrons are sent from n … Read more
Assertion-Reason Questions are the most tedious part of the question paper. These questions of paper require conceptual understanding of the topics. This series will help students to overcome the difficulty faced while answering assertion reasoning type questions. This type of questions consists of two statements; an assertion (statement of fact) and a reason. Reason is an explanation for … Read more
Directions: Each of these questions contain two statements, Assertion and Reason. Each of these questions also has four alternative choices, only one of which is the correct answer. You have to select one of the codes (a), (b), (c) and (d) given below.(a) Assertion is correct, reason is correct; reason is a correct explanation for … Read more
Case Study Question for Class 12 Physics Chapter 4 Moving Charges and Magnetism Case Study Question 1: Moving coil galvanometer operates on Permanent Magnet Moving Coll (PMMC) mechanism and was designed by the scientist Darsonval. Moving coil galvanometers are of two types(i) Suspended coll(ii) Pivoted coil type or tangent galvanometer, Its working is based on … Read more
Case Study Questions for Class 12 Physics Chapter 2 Electrostatic Potential and Capacitance Case Study Question 1: When an insulator is placed in an external field, the dipoles become aligned. Induced surface charges on the insulator establish a polarization field Ēi in its interior. The net field Ē in the insulator is the vector sum … Read more
Conceptual Questions Based on Current Electricity Here we are providing conceptual questions for Class 12 Physics Chapter 3 Current Electricity. Students are suggested to go through all the questions to understand the chapter well. Q.1. The standard resistance coils are made up of manganin. Why?Answer: When current flows through a wire its temperature will increase. … Read more
Directions: These questions consist of two statements, each printed as Assertion and Reason. While answering these questions, you are required to choose any one of the following four responses.(a) If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.(b) If both Assertion and Reason are correct but Reason … Read more
Directions: These questions consist of two statements, each printed as Assertion and Reason. While answering these questions, you are required to choose any one of the following four responses.(a) If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.(b) If both Assertion and Reason are correct but Reason … Read more
Directions: These questions consist of two statements, each printed as Assertion and Reason. While answering these questions, you are required to choose any one of the following four responses.(a) If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.(b) If both Assertion and Reason are correct but Reason … Read more
Directions: These questions consist of two statements, each printed as Assertion and Reason. While answering these questions, you are required to choose any one of the following four responses.(a) If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.(b) If both Assertion and Reason are correct but Reason … Read more
Directions: These questions consist of two statements, each printed as Assertion and Reason. While answering these questions, you are required to choose any one of the following four responses.(a) If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.(b) If both Assertion and Reason are correct but Reason … Read more
Directions: These questions consist of two statements, each printed as Assertion and Reason. While answering these questions, you are required to choose any one of the following four responses.(a) If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.(b) If both Assertion and Reason are correct but Reason … Read more
Directions: These questions consist of two statements, each printed as Assertion and Reason. While answering these questions, you are required to choose any one of the following four responses.(a) If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.(b) If both Assertion and Reason are correct but Reason … Read more
Directions: These questions consist of two statements, each printed as Assertion and Reason. While answering these questions, you are required to choose any one of the following four responses.(a) If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.(b) If both Assertion and Reason are correct but Reason … Read more
Board CBSE Useful for Class 12 Students Subject Physics Chapter Chapter 5 Magnetism and Matter Question Type Assertion and Reason Questions No. of Questions 14 With Answers Yes Assertion and Reason Questions on Class 12 Physics Chapter 5 Magnetism and Matter Assertion Reason Questions Directions: These questions consist of two statements, each printed as Assertion and … Read more
Board CBSE Useful for Class 12 Students Subject Physics Chapter Chapter 4 Moving Charges and Magnetism Question Type Assertion and Reason Questions No. of Questions 11 With Answers Yes Assertion and Reason Questions on Class 12 Physics Chapter 4 Moving Charges and Magnetism Assertion Reason Questions Directions: These questions consist of two statements, each printed as … Read more
Board CBSE Useful for Class 12 Students Subject Physics Chapter Chapter 3 Current Electricity Question Type Assertion and Reason Questions No. of Questions 6 With Answers Yes Assertion and Reason Questions on Class 12 Physics Chapter 3 Current Electricity Assertion Reason Questions Directions: These questions consist of two statements, each printed as Assertion and Reason. While … Read more
Board CBSE Useful for Class 12 Students Subject Physics Chapter Chapter 2 Electrostatic Potential and Capacitance Question Type Assertion and Reason Questions No. of Questions 27 With Answers Yes Assertion and Reason Questions on Class 12 Physics Chapter 2 Electrostatic Potential and Capacitance Assertion Reason Questions Directions: These questions consist of two statements, each printed as … Read more
Board CBSE Useful for Class 12 Students Subject Physics Chapter Chapter 1 Electric Charges and Fields Question Type Assertion and Reason Questions No. of Questions 36 With Answers Yes [Download] Assertion and Reason questions on class 12 physics chapter 1 electric charges and Fields Directions: These questions consist of two statements, each printed as Assertion … Read more
Case Study Question 1: Read the passage given below and answer the following questions: Neutrons and protons are identical particle in the sense that their masses are nearly the same and the force, called nuclear force, does into distinguish them. Nuclear force is the strongest force. Stability of nucleus is determined by the neutron proton … Read more
Case Study Questions for Class 12 Physics Chapter 12 Atoms Case Study Question 1: The spectral series of hydrogen atom were accounted for by Bohr using the relation where, R=Rydberg constant = 1.097 x 107 m-1 Lyman series is obtained when an electron jumps to first orbit from any subsequent orbit. Similarly, Balmer series is … Read more
