Physics Exam Past Questions and Answers | JAMB, WAEC and NECO

Physics is the science that studies the nature and properties of matter and energy. It covers topics like motion, heat, light, sound, electricity, magnetism, and the structure of atoms.

• Question 331: The angle of deviation of light of various colours passing through a triangular prism increases in the order Options:
  A) red → green → blue
  B) green → violet → blue
  C) blue → red → green
  D) blue → green → red
  Show Answer
  The correct answer is A .
• Question 332: The ratio of electrostatic force F_E to gravitational force F_G between two protons each of charge e and mass m, at a distance d is Options:
  A) e/4πԐoGm
  B) e²/Gm²
  C) Gm²/4πԐoe²
  D) e²/4πԐoeGm²
  Show Answer
  The correct answer is D .
• Question 333: A parallel plate capacitor of area 10cm² in vacuum has a capacitance of 10^-2$\mu$F. What is the distance between the plates?(e = 9 x 10^-12fm) Options:
  A) 9 x 10^-13m
  B) 9 x 10^-7m
  C) 9 x 10^-3m
  D) 9 x 10⁷m
  Show Answer
  The correct answer is B .
• Question 334: A real object is placed at a distance ucm in front of a curved mirror of focal length fcm. If the image is upright and magnified, then the mirror is Options:
  A) convex and u =2f
  B) concave and u = 2f
  C) convex and u = f
  D) concave and u = f
  Show Answer
  The correct answer is A .
• Question 335: A machine whose efficiency is 75% is used to lift a load of 1000N. Calculate the effort put in to the machine if it has a Velocity ratio of 4. Options:
  A) 343.32N
  B) 233.33N
  C) 333.33N
  D) 334.33N
  Show Answer
  The correct answer is C .
• Question 336: At what position will an object be placed in front of a concave mirror in order to obtain an image at infinity? Options:
  A) At the pole of the mirror
  B) At the principal focus
  C) at the center of the curvature
  D) Between the principal focus and the center of curvature
  Show Answer
  The correct answer is B .
• Question 337:

  Which of the following statements is/are correct for a freely falling body?

  I. the total is entirely kinetic

  II. the ratio of potential energy to kinetic energy is constant

  III. the sum of potential and kinetic energy is constant

  Options:
  A) I only
  B) II only
  C) III only
  D) I and III only
  Show Answer
  The correct answer is C .
• Question 338:

  Which of the following readings cannot be determined with a meter rule?

  Options:
  A) 2.56cm
  B) 2.25cm
  C) 2.50cm
  D) 2.05cm
  Show Answer
  The correct answer is A .
• Question 339: the property that is propagated in a traveling wave is Options:
  A) frequency
  B) amplitude
  C) energy
  D) wave lenght
  Show Answer
  The correct answer is C .
• Question 340: A magnetic field is said to exist at a point if a force is Options:
  A) exerted on a stationary charge at the point
  B) exerted on a moving charge at the point
  C) deflected at the point
  D) strengthened at the point
  Show Answer
  The correct answer is B .