Physics 12th Class Model Paper 2027

📄 Official Model Paper PDF — Physics 12

Below is the official model paper document for Physics 12th Class (Annual Examination 2027). Scroll inside the frame to read it, or use the download button below.

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📝 Model Paper Content Summary

The model paper is divided into two main sections: Objective (Part-I) and Subjective (Part-II). Below is a summary of the questions included.

Part-I: Objective Type Questions (17 Marks)

This section contains 17 Multiple Choice Questions covering topics from the entire syllabus. A few sample questions are listed below:

• \(V_{rms}\) of the gas molecule is 300 m s⁻¹. If its absolute temperature is reduced to half and molecular weight is doubled, then \(V_{rms}\) will become...
• Which quantity is zero at the extreme position of a body executing simple harmonic motion?
• The colours appearing on the soap bubbles are due to the phenomenon of light...
• In a charged capacitor, the energy resides in...
• If the frequency of incident light is above the threshold frequency, increasing the intensity mainly increases the...
• Characteristic X-rays are produced due to...
• What is a standard candle in astronomy?

...and 10 more MCQs covering all chapters.

Part-II: Subjective Type Questions (68 Marks)

This section is further divided into Short Answer Questions (Section 1) and Detailed Questions (Section 2).

Section 1: Short Answer Questions

• Q.2: Attempt any EIGHT short questions out of TWELVE (Chapters 13–15). Topics include gas laws, kinetic energy, SHM, damping, and wave principles.
• Q.3: Attempt any EIGHT short questions out of TWELVE (Chapters 16–18). Topics include capacitors, AC circuits, inductors, and photoelectric effect.
• Q.4: Attempt any SIX short questions out of NINE (Chapters 19–21). Topics include radioactivity, half-life, ultrasound, and Hubble's law.

Section 2: Detailed Questions (Attempt any 3)

• Q.5: (a) Show that the temperature of an ideal gas is a direct measure of average translational kinetic energy. (b) SHM numerical on velocity and amplitude.
• Q.6: (a) Derive electric potential energy stored in a capacitor. (b) Numerical on Young's double-slit experiment (slit separation).
• Q.7: (a) Explain the behaviour of a capacitor in an AC circuit and derive capacitive reactance. (b) Numerical on RMS current and frequency.
• Q.8: (a) Explain the photoelectric effect using Einstein's equation. (b) Numerical on radioactive decay (activity, decay constant, half-life).
• Q.9: (a) Describe how an ultrasound image is created. (b) Numerical on distance to a supernova using the standard candle method.

📘 Official Reference

This model paper is prepared according to the official notification for the Annual Examination 2027. Always cross-check with the PECTAA Curriculum & Compliance page and your BISE Punjab board website.

❓ Frequently Asked Questions — Physics 12th Model Paper 2027

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