Conceptual Questions Based on Class 12 Physics Dual Nature of Radiation and Matter Q.1. What happens to the wavelength of a photon after it collides with an electron? Solution. A photon transfers a part of its energy to the colliding electron, so its energy decreases and consequently wavelength increases. Q.2. Why are alkali metals most … Read more
Conceptual Questions Based on Class 12 Physics Wave Optics Here we are providing conceptual questions based on Class 12 Physics Wave Optics. Go through each and every question for better understanding. Q.1. What are the reasons to believe that light is a wave motion? Solution. Light undergoes interference, diffraction and polarization. These phenomena establish that … Read more
Conceptual Questions Based on Class 12 Physics Optical Instruments Here we are providing conceptual questions based on class 12 physics chapter 9 Optical Instruments. These questions are prepared by experts and are very useful from exam point of view. Students can practice these questions for scoring better marks in the exam. Q.1. How will the … Read more
Conceptual Questions Based on Class 12 Physics Ray Optics Here we are providing conceptual questions based on class 12 physics chapter 9 Ray Optics. These questions are prepared by experts and are very useful from exam point of view. Students can practice these questions for scoring better marks in the exam. Q.1. Why is a … Read more
Here we are providing revision notes for class 12 physics chapter 7 alternating current. Students can use this article for quick revision of the chapter. Revision Notes for Class 12 Physics Chapter 7 Alternating Current 1. Alternating current. It is that current which varies in magnitude continuously and reverses its direction periodically. Its value at … Read more
Here we are providing extra questions for class 12 physics. In this article we have covered class 12 physics chapter 10 Wave Optics. Different kind of questions are included to give students an idea about every possible question related to the chapter. Extra Questions for Class 12 Physics Chapter 10 Wave Optics Very Short Answer … Read more
Here we are providing extra questions for class 12 physics. In this article we have covered class 12 physics chapter 9 Ray optics and Optical Instrument. Different kind of questions are included to give students an idea about every possible question related to the chapter. Extra Questions for Class 12 Physics Chapter 9 Ray Optics … Read more
Numerical Problems on Total Internal Reflection and Critical Angle Class 12 Physics · Ray Optics and Optical Instruments Here we are providing numerical problems based on topic total internal reflection and critical angle for class 12 physics. SQ Total Internal Reflection Practice Set Apply Snell’s Law and the Critical Angle formula $\sin C = \frac{\mu_{rarer}}{\mu_{denser}}$ … Read more
Numerical Problems Based on Refraction of Light for Class 12 Physics Here we are providing numerical problems based on refraction of light for class 12 physics. This covers problems on lateral shift, real and apparent depth. Students can practice these questions for better understanding of the concepts and formulae. Q.1. A ray of light of … Read more
Here we are providing Numerical Problems based on Mirror Formula for CBSE Class 12 Physics. Numerical Problems on Mirror Formula Class 12 Physics · Ray Optics N Mirror Formula Practice Set 1 Apply $\frac{1}{v} + \frac{1}{u} = \frac{1}{f}$ and $m = -\frac{v}{u}$ Ch 9 · Ray Optics 1 A 5 cm long needle is placed … Read more
Here we are providing conceptual questions based on class 12 physics chapter 8 electromagnetic waves. These questions are prepared by experts and are very useful from exam point of view. Students can practice these questions for scoring better marks in the exam. Conceptual Questions Based on Class 12 Physics Electromagnetic Waves Q.1. What is displacement … Read more
Conceptual Questions Based on Class 12 Physics Magnetism and Matter Q.1. Does a magnetic monopole exist? Justify your answer. How magnetic field is produced? Solution. No, a magnetic monopole does not exist. The reason is that a magnetic field is produced by a current loop and not by monopole of a magnet. Q.2. How does … Read more
Conceptual Questions Based on Alternating Current Q.1. Why a d.c. voltmeter and d.c. ammeter cannot read a.c.? Solution. The average value of a.c. over a cycle is zero. So, a d.c. voltmeter/ammeter will show zero reading with alternating voltage/current. Q.2. What is meant by the statement that the current through an inductor lags behind the … Read more
Q.1. Will an induced emf develop in a conductor, when moved in a direction parallel to the magnetic field ? Solution. No, because the magnetic flux linked with the conductor does not change when it is moved parallel to the magnetic field. Moreover, the magnetic Lorentz force on the free electrons of the conductor is … Read more
Conceptual Questions Based on Moving Charges and Magnetism Here we are providing conceptual questions for Class 12 Physics Chapter 4 Moving Charges and Magnetism. Q.1. How is a magnetic field produced ?Sol. A magnetic field can be produced by the following ways: (i) by a magnet (ii) by a current carrying conductor (iii) by a … Read more
Here we are providing topicwise important questions with answers for Class 12 Physics Chapter 2 Electrostatic Potential and Capacitance. Study notes of topics covered are also provided so that you can revise at the same time before doing the question answer. Topicwise Important Questions and Answers for Class 12 Physics Chapter 2 Chapter: Electrostatic Potential … Read more
Here we are providing topicwise important questions with answers for class 12 physics chapter 1 electric charges and fields. Study notes of topics covered are also provided so that you can revise at the same time before doing the question answer. Topicwise Important Questions and Answers for Class 12 Physics Chapter 1 Chapter: Electric Charges … Read more
Wavefront : The locus of all particles of the medium vibrating in the same phase at a given instant is known as wavefront.Depending on the shape of sources of light, wavefront can be of three types>> Spherical wavefront : When the source of light is a point source, the wavefront is spherical.>> Cylindrical wavefront : … 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
Q. 1. Name the phenomenon which shows the quantum nature of electromagnetic radiation. Q. 2. Define intensity of radiation on the basis of photon picture of light. Write its SI unit. Q. 3. The figure shows the variation of stopping potential V0 with the frequency n of the incident radiations for two photosensitive metals P … 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
Here we are providing important questions for class 12 Physics for Chapter Electromagnetic Waves. This includes Fill in the blank type, Very short answer type questions and Short answer type questions. Link for MCQs, Assertion Reason and Case Study or passage type questions are also provided. So if you are looking for a complete package, … Read more
We are providing assertion reason questions for class 12 physics based on term 2 syllabus. There are total 7 chapters included in cbse class 12 physics term 2 exams. Students can practice these questions for concept clarity and scoring better marks in their exam. Class 12 Physics Assertion Reason Questions Useful for Term 2 Exam … Read more
Here we are providing quick revision notes for class 12 physics term 1 examination. This revision notes are prepared strictly according to the latest reduced syllabus. This quick revision notes covers all the chapters included in class 12 physics term 1 syllabus. Students can use this revision notes for quick review of all the topics. … 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
