Summary

• Description:

  The MS Word document comprises RCEA JOINT Physics Paper 2 2026 Mock Exam with Answers (Marking Scheme). The PDF version is also available upon your request. The marking scheme is in a different document.

  It was a KCSE Physics Paper 2 mock examination covering electricity and magnetism, geometrical optics, waves, atomic physics, and electronics. It assesses competence in circuit analysis, electromagnetic induction, cathode ray oscilloscopes, X-ray generation, and semiconductor physics.

  • Duration: 2 Hours
  • Total Marks: 80
  • Number of Questions: 15 (Questions 1 - 15)
  • Structure: Section A (25 marks, Questions 1–10, compulsory short structured questions) and Section B (55 marks, Questions 11–15, compulsory extended analytical and computational questions).

  It covers the following topics:

  • Section A
    • Current electricity: internal resistance and circuit brightness comparisons in parallel and series connections
    • Geometrical optics: plane mirror reflection rays and convex mirror virtual image construction
    • Domestic electrical installations: fuse ratings and maximum bulb load limits
    • Magnetism: electrical magnetization methods and hard versus soft magnetic substances
    • Wave motion: wave diffraction through narrow apertures and echo sound propagation distances
    • Electromagnetic spectrum: production and industrial uses of infrared, ultraviolet, and X-rays
    • Cathode Ray Oscilloscope (CRO): displaying sinusoidal waveforms from peak voltage and time-base settings
    • DC network analysis: equivalent resistance and total current calculations in parallel-series resistor circuits
  • Section B
    • Photoelectric effect: work function, threshold frequency, gold-leaf electroscope responses, and graphical determination of Planck's constant
    • Nuclear and atomic physics: radioactive decay series, half-life mass calculations, X-ray tube components, mechanisms of X-ray emission, and photon kinetic energies
    • Electromagnetism and power transmission: transformer step-down calculations, efficiency, high-voltage long-distance transmission merits, and monthly consumer electricity billing
    • Electronics and electrostatics: extrinsic semiconductor doping (p-type lattice formation), pn-junction diode forward bias depletion layers, charge distribution on hollow conductors, and series-parallel capacitor network charges
    • Thin lenses and optical instruments: linear magnification graphs, focal length determination, lens power calculations, and refractive eye defect corrections
• File Size:

  359.96 KB
• Length:

  13 pages
• Category:

  Mock Past Papers
• Level:

  Form 4
• Subject:

  Physics
• Posted By:

  Caleb_Peter

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