Practise 508 real Federal Board Physics questions from 2023 to 2026. See an answer and explanation as soon as you answer.
FSC Physics is examined by the Federal Board of Intermediate and Secondary Education (FBISE) in the annual examinations, for 11th and 12th class. Tayyari Karo has real questions from 2023 to 2026, covering topics such as Waves, Dawn of Modern Physics, Current Electricity, Electromagnetism and Electrostatics. Working through real papers is the fastest way to learn the paper pattern and the way questions are worded.
170 of the questions are multiple choice and marked instantly; the rest are short and long questions with a model answer. The answers are prepared by Tayyari Karo, since we could not find an official marking scheme.
These are real past-paper questions. Think of your answer first, then open the explanation.
Which of the following has higher efficiency? An engine working between the temperatures:
Answer: C. 40K and 20K
Carnot efficiency = 1 − T_cold/T_hot. For 40K/20K, efficiency = 1 − 20/40 = 0.5 (50%), the highest among the given pairs.
The density of a steel ball was determined by measuring its mass and diameter. The mass was measured with 1% and diameter with 3% uncertainty. The percentage error in the density of the steel ball is approximately:
Answer: A. 10%
ρ = m/V ∝ m/d³, so %error in ρ = %error in m + 3×(%error in d) = 1% + 3×3% = 10%.
Torque τ is defined as the vector product of position vector r (moment arm) and force F. What will be the scalar product of torque τ and position vector r (moment arm)?
Answer: B. Zero
τ = r × F is always perpendicular to r, so the dot product τ·r = 0.
Describe the term 'escape velocity'. Write its formula in terms of G, m and R.
Escape velocity is the minimum speed with which a body must be projected from the surface of a planet so that it completely overcomes the planet's gravitational pull and never returns.
It is obtained by equating the kinetic energy of projection to the gravitational potential energy: ½mvesc² = GMm/R ⇒ vesc = √(2GM/R), where M is the mass and R the radius of the planet.
Number of questions available for each exam session.
| Session | 11th class | 12th class |
|---|---|---|
| 2026 Annual | 51 | 53 |
| 2025 1st Annual | 53 | 53 |
| 2025 2nd Annual | 53 | 53 |
| 2024 Annual | 53 | 53 |
| 2023 Annual | 43 | 43 |
Yes. Every question comes from a Federal Board (FBISE) Physics paper from 2023 to 2026, and each one shows the session it came from.
No. We could not find an official FBISE marking scheme for these papers, so the answers and explanations are written by Tayyari Karo for practice. Check anything important with your teacher or textbook.
You can start free with no signup. A small set of papers per subject is free, and Premium unlocks the full question bank.
11th and 12th class. The table below shows how many questions we have for each exam session.
