The CBSE (Central Board of Secondary Education) has issued the CBSE 12th Exam Date Sheet 2025. This year the CBSE Class 12 Physics Board Exam 2025 is set to be conducted on 21st February 2025. Students appearing for the exam are preparing day and night as there are not even three months left for the exam. At such a time it is necessary for students to do smart study rather than hard work.
To help them with the CBSE 12th Physics Exam Preparation, this article provides the most repeated questions in the CBSE 12th Board Physics Exam from the past few years. Students must practice and solve these questions to increase their chances of scoring higher marks for the subject. Students can scroll down to know the most repeated CBSE 12th questions from previous years.
CBSE Class 12 Board Physics Exam 2025: Most Asked Questions from Previous Years
The table below lists the chapter-wise most repeated questions in the CBSE Class 12 Physics Board Exam for previous years:
Chapter Name
Most Repeated Questions
Chapter 1: Electric Charges and Fields
State Gauss's theorem and apply it to find the electric field due to an infinitely long straight uniformly charged wire. (Years: 2019, 2021, 2023)
Derive the expression for the electric field due to an electric dipole at a point on its axial line. (Years: 2017, 2020)
Chapter 2: Electrostatic Potential and Capacitance
Derive the expression for the potential energy of a system of two point charges. (Years: 2016, 2020)
Explain the working off a parallel plate capacitor with a dielectric slab. Derive the expression for its capacitance. (Years: 2017, 2021)
Chapter 3: Current Electricity
State and explain Kirchhoff's Law with an example. (Years: 2019, 2021, 2023)
Derive the relation between current density, drift velocity, and electric field. (Years: 2016, 2021)
Numerical: A potentiometer is used to measure the EMF of a cell. Explain why a potentiometer is preferred over a voltmeter for such measurements. (Years: 2018, 2022)
Chapter 4: Moving Charges and Magnetism
Derive the expression for the force acting on a charged particle moving in a uniform magnetic field. (Years: 2018, 2020, 2023)
State Biot-Savart Law: Use it to derive the expression for the magnetic field at the center of a circular loop carrying current. (Years: 2017, 2021)
Chapter 6: Electromagnetic Induction
State Faraday's Laws of electromagnetic induction and derive the expression for induced EMF in a coil. (Years: 2015, 2018, 2021)
Explain the working of an AC generator with a labeled diagram. (Years: 2017, 2020)
Chapter 7: Alternating Current
Derive the expression for the impedance of an LCR series circuit. (Years: 2017, 2020)
Explain the concept of resonance in an AC circuit. What is the condition for resonance? (Years: 2018, 2021)
Chapter 9: Ray Optics and Optical Instruments
Derive the lens maker's formula for a convex lens. (Years: 2016, 2018, 2022)
Explain total internal reflection with two conditions for it to occur. (Years: 2017, 2020)
Chapter 10: Wave Optics
State the conditions for constructive and destructive interference in Young's Double Slit Experiment. (Years: 2018, 2020, 2023)
Define wavefront and explain the types (spherical, plane, and cylindrical wavefronts). (Years: 2017, 2019)
Explain Huygen's principle and use it to prove the laws of reflection or refraction. (Years: 2016, 2018, 2022)
Derive the condition for constructive and destructive interference in YDSE. (Years: 2015, 2021)
Chapter 11: Dual Nature of Matter and Radiation
State Einstein's photoelectric equation and explain its significance. (Years: 2018, 2021)
Derive the expression for the de Broglie wavelength of a particle. (Years: 2016, 2020)
Chapter 12: Atoms
Explain Bohr's postulates and derive the expression for the radius of an electron's orbit in a hydrogen atom. (Years: 2017, 2020)
Chapter 13: Nuclei
Explain the binding energy curve and its significance. (Years: 2015, 2020)
Chapter 14: Semiconductor Electronics
Explain the working of a p-n junction diode. (Years: 2017, 2020, 2022)
Draw the output waveform for the half-wave and full-wave rectifier. (Years: 2016, 2021)
