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 1: To convert a galvanometer to a voltmeter, a Options:
  A) high resistance is connected to it in series
  B) high resistance is connected to it in parallel
  C) low resistance is connected to it in parallel
  D) low resistance is connected to it in series
  Show Answer
  The correct answer is A .
• Question 2: The charge carriers in gasses are Options:
  A) ions only
  B) electrons and ions
  C) electrons and holes
  D) electrons only
  Show Answer
  The correct answer is A .
• Question 3:

  

  A uniform light rod is kept in horizontal equilibrium under the influence of fore forces as shown above, which of the following equations correctly represents the condition of equilibrium for the rod

  Options:
  A) F1 + F2 = F3 + F4
  B) F1 + F2 - F3 + F = 0
  C) (F1 + F2)ab = (F3 + F4)cd
  D) F1a + F2b - F3c - F4d = 0
  Show Answer
  The correct answer is D .
• Question 4: A narrow, uniform glass tube, closed at one end, constains air which is sealed by a thread of mercury. The tube is placed first horizontally and then vertically with the open end at the top. Which of the following statements is correct? Options:
  A) The length of the entrapped air in the horizontal position is less than that in the vertical position
  B) The length of the entrapped air in the vertical position is less than that in the horizontal position
  C) The length of the mercury column becomes shorter in the horizontal position than in the vertical position
  D) The length of the mercury column becomes shorter in the vertical position than in the horizontal position
  E) The pressure of the entrapped air is atmospheric in both cases.
  Show Answer
  The correct answer is B .
• Question 5: The saturated vapour pressure of a liquid increases as the Options:
  A) volume of the liquid increases
  B) volume of the liquid decreases
  C) temperature of the liquid increases
  D) temperature of the liquid decreases
  Show Answer
  The correct answer is C .
• Question 6: Which of the following pairs is NOT part of the electromagnetic spectrum? i. Radio waves. ii. Beta rays. iii. Gamma rays. iv. Alpha rays Options:
  A) i and ii
  B) iii and iv
  C) i and ii
  D) ii and iv
  Show Answer
  The correct answer is D .
• Question 7: 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 8:

  

  Two mirrors M1 and M2 are inclined at right angles as shown above calculate the angle of reflection of the ray of light at M2

  Options:
  A) ${30}^{\circ }$
  B) ${45}^{\circ }$
  C) ${60}^{\circ }$
  D) ${90}^{\circ }$
  Show Answer
  The correct answer is C .
• Question 9:

  Which of the following is/are TRUE of nuclear fission? I. A heavy nucleus is split into two nuclei of comparable masses

  II. Two light nuclei are joined together to form a heavier nucleus

  III. The total mass of the products is less than that of the reactants

  Options:
  A) I only
  B) II only
  C) III only
  D) I and III only
  E) II and III only
  Show Answer
  The correct answer is D .
• Question 10: A body of mass 10kg rests on a rough inclined plane whose angle of tilt $\theta$ is variable. $\theta$ is gradually increased until the body starts to slide down the plane at 30^o. The coefficient of limiting friction between the body and the plane Options:
  A) 0.30
  B) 0.50
  C) 0.58
  D) 0.87
  Show Answer
  The correct answer is C .