⚡ 12th Std Physics Top 20 Two Mark Questions – Most Repeated (2025)
📚 Ace Your Public Exam with the Most Repeated 2-Mark Questions!
The 12th Physics Top 20 Two Mark Questions Guide is tailored for Tamil Nadu 12th Public Exam 2025 students aiming for high scores. It features chapter-wise, frequently repeated two-mark questions derived from previous year public exams, model tests, and textbook exercises. These high-scoring questions cover key definitions, concepts, and numerical problems, making them vital for exam preparation.
✔ Based on Tamil Nadu 12th Board Exam Syllabus
✔ Top 20 Repeated 2-Mark Questions with Answers
✔ Includes Conceptual, Formula-Based & Definition Questions
✔ Covers Laws, Principles & Applications
Top 20 Two Marks 12th Physics – 2025
- What is corona discharge? – (Repeated 6 times)
- Mention the ways of producing induced EMF. – (Repeated 5 times)
- Define stopping potential. – (Repeated 4 times)
- State Fleming’s left-hand rule. – (Repeated 4 times)
- Mention the differences between interference and diffraction. – (Repeated 3 times)
- Define electric dipole. Give an example. – (Repeated 3 times)
- Compute the speed of electromagnetic wave in a medium if the amplitudes of electric and magnetic fields are 3 × 10⁴ N/C and 2 × 10⁻⁴ T, respectively. – (Repeated 3 times)
- The electric field lines never intersect – Justify. – (Repeated 2 times)
- State Malus’s law. – (Repeated 2 times)
- State Kirchhoff’s voltage rule. – (Repeated 2 times)
- Define capacitance. Give its unit. – (Repeated 2 times)
- State Joule’s law of heating. – (Repeated 2 times)
- Define Curie. – (Repeated 2 times)
- What is Bremsstrahlung? – (Repeated 2 times)
- What are the properties of neutrino? – (Repeated 2 times)
- What is skip area / Skip Distance? – (Repeated 2 times)
- What is an isotope? Give an example. – (Repeated 2 times)
- Calculate the cut-off wavelength of X-rays from an X-ray tube of accelerating potential 20000 V. – (Repeated 2 times)
- Define resistivity or electrical resistivity. – (Repeated 2 times)
- Determine the number of electrons flowing per second through a conductor when a current of 32 A flows through it. – (Repeated 2 times)
- Give two applications of the Seebeck effect.
- How will you define Q-factor?
- What is Hysteresis?
- State Kirchhoff’s current rule.
- State Maxwell’s right-hand corkscrew rule.
- How will you define threshold frequency?
- Define the work function of a metal. Give its unit.
- List out the properties of neutrino?
- What is the Peltier effect?
- What are the uses of X-rays?
- Define electrostatic potential. Give its unit.
- List the uses of polaroids.
- What is displacement current?
- What is the photoelectric effect?
- Distinguish between drift velocity and mobility.
- State Huygen’s principle.
- How will you increase the current sensitivity of a galvanometer?