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 1561: A machine is used to lift a load of 20 N through a height of 10 m. if the efficiency of the machine is 40%, how much work is done? Options:
  A) 80 J
  B) 500 J
  C) 300 J
  D) 120 J
  Show Answer
  The correct answer is B .
• Question 1562:

  

  In the circuit diagram above , the ammeter reads a current of 3A when R is 5Ω and 6A when R is 2Ω. Determine the value of x.

  Options:
  A) 8Ω
  B) 2Ω
  C) 10Ω
  D) 4Ω
  Show Answer
  The correct answer is C .
• Question 1563:

  

  In the circuit diagram of a transistor above, the terminal P, Q and R represent

  Options:
  A) EMITTER, BASE and COLLECTOR
  B) COLLECTOR, EMITTER and BASE
  C) BASE, COLLECTOR and EMITTER
  D) BASE, ENITTER and COLLECTOR
  Show Answer
  The correct answer is A .
• Question 1564: The maximum permissible current through a galvanometer G of internal resistance 10$\mathrm{\Omega }$ is 0.05A. A resistance R is used to convert G into a voltmeter with a maximum reading of 100V. Find the value of R and how it is connected to G Options:
  A) 20,000 ohms in parallel
  B) 19,990 ohms in series
  C) 1990 ohms in series
  D) 100 ohms in series
  Show Answer
  The correct answer is C .
• Question 1565:

  A quantity of ice at -10°C is heated until the temperature of the heating vessel is 90°C. Which of the following constants is NOT required to determine the quantity of heat supplied to the vessel?

  Options:
  A) Specific latent heat of vaporization
  B) Specific heat capacity of ice
  C) Specific latent heat of fusion
  D) Specific heat capacity of water
  Show Answer
  The correct answer is A .
• Question 1566:

  Which of the following does NOT describe the Image formed by a plane minor?

  Options:
  A) Erect
  B) Laterally inverted
  C) Same distance from mirror as object
  D) Magnified
  Show Answer
  The correct answer is D .
• Question 1567:

  Which of the following characteristics of a wave is used in the measurement of the depth of the Sea?

  Options:
  A) diffraction
  B) interference
  C) refraction
  D) reflection
  Show Answer
  The correct answer is D .
• Question 1568:

  

  The diagram above shows a velocity time graph representing the motion of a car. Find the total distance covered during the acceleration and retardation of the motion

  Options:
  A) 75m
  B) 150m
  C) 300m
  D) 375m
  Show Answer
  The correct answer is A .
• Question 1569: The production of pure spectrum could easily be achieved using a? Options:
  A) glass prism with a pin
  B) triangular prism with two convex lens
  C) traingular prism only
  D) triangular prism with two concave lenses
  Show Answer
  The correct answer is B .
• Question 1570: Which of the following statements about wave motion is correct? Options:
  A) Electromagnetic waves are transverse
  B) Transverse waves do not require a medium for propagation
  C) Longitudinal waves vibrate perpendicular to the direction of travel
  D) All mechanical waves are longitudinal
  Show Answer
  The correct answer is A .