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 61: Two forces A and B act at a point. If their resultant is [given by] (B - A) in the direction of B, then Options:
  A) A and B are equal
  B) A is greater than B
  C) the angle between A and B is 0°
  D) the angle between A and B is 90°
  E) the angle between A and B is 180°
  Show Answer
  The correct answer is E .
• Question 62:

  

  Two horizontal forces, 10N and 8N and another force F1 inclined at 30 to the vertical acting as shown in the diagram above, keep the body P in equilibrium, The weight of the body is

  Options:
  A) 2√3/3N
  B) √2N
  C) 4√3/3
  D) 2V3N
  Show Answer
  The correct answer is D .
• Question 63: The lower and upper fixed points of a mercury-in-glass thermometer are marked X and 180 mm respectively. On a particular day the mercury meniscus in the thermometer rises to 60mm. If the corresponding reading on a Celsius scale is 20 ° C, what is the value X? Options:
  A) 6.0mm
  B) 18.0mm
  C) 30.0mm
  D) 60.0mm
  E) 120.0mm
  Show Answer
  The correct answer is C .
• Question 64:

  

  The net capacitance of the circuit shown above is

  Options:
  A) 8.0µF
  B) 6.0µF
  C) 4.0µF
  D) 2.0µF
  Show Answer
  The correct answer is D .
• Question 65: An object is placed at 5.6 x 10^-4m in front of a converging lens of focal length 1.0 x 10^-nm. The image formed is Options:
  A) Real, Erect and magnified
  B) Virtual, erect and magnified
  C) Real, inverted and magnified
  D) Virtual, erect and diminished
  Show Answer
  The correct answer is C .
• Question 66: Which of the following is used in a nuclear reactor to slow down fast moving neutrons? Options:
  A) graphite rods
  B) carbon dioxide gas
  C) liquid sodium metal
  D) concrete shield
  E) boron rods
  Show Answer
  The correct answer is A .
• Question 67:

  

  What is the resultant resistance in the circuit given above?

  Options:
  A) 11Ω
  B) 8Ω
  C) 4Ω
  D) 3.6Ω
  E) 4.3Ω
  Show Answer
  The correct answer is B .
• Question 68:

  I. Use a liquid with a high melting point.

  II. use a liquid of high volume expansivity.

  III. use a capillary tube of large diameter. which of the above best describes how the sensitivity of a liquid-in-glass thermometer can be enhanced?

  Options:
  A) I only
  B) II. only
  C) I and II only
  D) II and III only
  Show Answer
  The correct answer is B .
• Question 69:

  

  In the diagram above, the direction of the force between N and S in the magnetic field is

  Options:
  A) MP
  B) SN
  C) NS
  D) PM
  Show Answer
  The correct answer is C .
• Question 70: Radio receivers are tuned using Options:
  A) electromagnets
  B) electric motors
  C) Inductors
  D) variable capacitors
  E) variable resistors
  Show Answer
  The correct answer is D .