Your school name
2nd Year Physics Board Pattern Paper 20262nd Year · Physics · Federal (FBISE)
Q1. Multiple choice questions (Attempt all · 17 × 1 = 17)
- Unit of capacitive reactance is:
- The radiation emitted due to sudden deceleration of electrons is called:
- Intensity of light depends upon:
- Which material should be inserted between the plates of a capacitor in order to increase its capacitance?
- The balloon model shows that as the balloon expands:
- Artificial satellites are used for:
- Increasing the intensity of incident light of constant frequency above the threshold frequency results in:
- Statistical mechanics connects microscopic details with:
- Which one of the following is an amphoteric oxide?
- In a fission reaction, which particle is used to bombard U-235?
- When P.E of the spring is maximum for a spring mass system:
- Lithosphere is composed mainly of:
- The angle between current and voltage in a resistor is:
- Normal X-ray films are limited because:
- What is a key criticism of the Many-Worlds interpretation?
- If charged body is moved against the electric field, it will gain:
- Another important example of a standard candle is:
Q2. Short questions (Attempt any 7 of 10 · 7 × 3 = 21)
- How does altitude affect the orbital velocity of a satellite?
- What is meant by “grating element”?
- Write the formula for average value of alternating current.
- Who proposed the modification of the ideal gas law for real gases and what corrections he made?
- Define displacement of a body in simple harmonic motion.
- Write the expression for total voltage across series capacitors.
- Why gravitation not account for the formation of molecules?
- What materials can a diffraction grating be made?
- Write the formula for emf induced in coil-2 due to coil-1.
- Differentiate between the formations of white dwarfs and neutron stars.
Q3. Short questions (Attempt any 7 of 10 · 7 × 3 = 21)
- Define radioactivity.
- Explain the effect of temperature on the intensity and wavelength of black body radiation.
- Why is CT scan better than normal X-ray film?
- What is long-term inertia?
- How is the electron beam focused in an electron microscope?
- Discuss the general group trends of group 7 elements.
- What happens to the atomic number and mass number of nucleus that (a) emits electron (b) undergoes electron capture (c) emits α particle?
- State Wien’s displacement law and write its mathematical form.
- Describe the structure of an X-ray tube.
- What is the role of the atmosphere in shielding life on Earth?
Q4. Long questions (Attempt any 2 of 3 · 2 × 13 = 26)
- Explain diffraction grating in detail. Describe its construction and working principle.
- In an RL series circuit will the current lag or lead the applied alternating voltage? Explain the answer with a phasor diagram.
- Explain how the energy imbalance between the poles and the equator can affect atmospheric circulation.