Skip to content
p.paperbanao.
Continue

Federal (FBISE) · Quarter book test · Free

2nd Year Physics 2nd Quarter Book Paper

40 marks · 1 hour · 28 questions. Covers: 18. Diffraction and Interference, 19. Electric Potential and Capacitor, 20. Alternating Current.

Your school name

2nd Year Physics 2nd Quarter Book Paper

2nd Year · Physics · Federal (FBISE)

Name: ____________Roll No: ________Class/Section: ________Date: ________Total marks: 40Time: 1 hour

Q1. Multiple choice questions (Attempt all · 12 × 1 = 12)

  1. Which material should be inserted between the plates of a capacitor in order to increase its capacitance?
    1. mica
    2. copper
    3. ron
    4. tin
  2. Intensity of light depends upon:
    1. Wavelength
    2. Amplitude
    3. Velocity
    4. Frequency
  3. Unit of capacitive reactance is:
    1. Ohm
    2. Farad
    3. Henry
    4. Tesla
  4. If charged body is moved against the electric field, it will gain:
    1. P.E
    2. K.E
    3. mechanical energy
    4. electrical potential energy
  5. What is a key criticism of the Many-Worlds interpretation?
    1. It relies on the collapse of the wave function.
    2. It denies the existence of superposition.
    3. It contradicts classical physics entirely.
    4. It is difficult to test experimentally.
  6. The angle between current and voltage in a resistor is:
    1. 90°
    2. 180°
    3. 0°
    4. 45°
  7. In series combination of capacitors, the reciprocal of the equivalent capacitance is equal to:
    1. Sum of the capacitances
    2. Sum of the reciprocals of the capacitances
    3. Product of capacitances
    4. Difference of capacitances
  8. A diffraction grating separates white light into its constituent colors because:
    1. It absorbs certain colors.
    2. It reflects different colors at different angles.
    3. It diffracts different colors at different angles.
    4. It refracts different colors at different angles.
  9. The unit of self-inductance is:
    1. Ohm
    2. Farad
    3. Henry
    4. Henry
  10. The cell membrane acts like a:
    1. Resistor
    2. Battery
    3. Capacitor
    4. Generator
  11. What is a key criticism of the Many-Worlds interpretation?
    1. It relies on the collapse of the wave function.
    2. It is difficult to test experimentally.
    3. It denies the existence of superposition.
    4. It contradicts classical physics entirely.
  12. Mutual inductance between two coils is 1 henry if a current changing at the rate of 1 A/s in one coil induces emf of:
    1. 0.5 V in other coil
    2. 1 V in other coil
    3. 2 V in other coil
    4. 10 V in other coil

Q2. Short questions (Attempt any 8 of 12 · 8 × 2 = 16)

  1. What is meant by “grating element”?
  2. Write the formula for average value of alternating current.
  3. Write the expression for total voltage across series capacitors.
  4. What materials can a diffraction grating be made?
  5. Write the formula for emf induced in coil-2 due to coil-1.
  6. What is bioelectricity?
  7. Show that bright and dark fringe spacing are equal in YDSE.
  8. Distinguish graphically between half-wave and full-wave rectification.
  9. If a capacitor is fully charged and then left for discharging. How much charge will be left on the plate of the capacitor after time equal to one time constant?
  10. State any two conditions required for observing clear interference fringes.
  11. Does the SI unit used for mutual-inductance and self-inductance are same? Explain briefly.
  12. Write the formula for capacitance of a parallel plate capacitor without dielectric.

Q3. Long questions (Attempt any 3 of 4 · 3 × 4 = 12)

  1. In an RL series circuit will the current lag or lead the applied alternating voltage? Explain the answer with a phasor diagram.
  2. Derive the expression for the equivalent capacitance for parallel combination of capacitors.
  3. Explain diffraction grating in detail. Describe its construction and working principle.
  4. Explain in detail self-induction and mutual induction, derive their mathematical expressions, and define the unit henry in each case.