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 1091: Musical instruments playing the same note can be distinguished from one another owing to the differences in their Options:
  A) quality
  B) pitch
  C) intensity
  D) loudness
  Show Answer
  The correct answer is A .
• Question 1092: Calculate the heat energy lost when 10g of boiling water changes to ice at 0°C. [Specific latent heat of ice 336Jg^-1 . Specific heat capacity of water 4.2Jg^-1 K^-1] Options:
  A) 840J
  B) 3360J
  C) 3420J
  D) 4200J
  E) 7560J
  Show Answer
  The correct answer is E .
• Question 1093: Two parallel plates at a distance of 8.0 x 10^-3m apart are maintained at a p.d of 600 volts with the negative plate earthed. What is the electric field strength? Options:
  A) 4.8 Vm^-1
  B) 75.0Vm^-1
  C) 4800.0Vm^-1
  D) 75000.0Vm^-1
  Show Answer
  The correct answer is D .
• Question 1094: When an atom loses or gains a charge, it becomes Options:
  A) an electron
  B) an ion
  C) a neutron
  D) a proton
  Show Answer
  The correct answer is B .
• Question 1095:

  A certain manufacturer wishes to make an n-type semiconductor. Which materials would he select for doping?

  Options:
  A) boron and antimony
  B) aluminium and antimony
  C) aluminium and indium
  D) arsenic and antimony
  Show Answer
  The correct answer is D .
• Question 1096:

  Which statements(s) is/are NOT true?

  I. A saturated vapour is one that is in equilibrium with its liquid in a closed space.
  II. A vapour contains molecules with varying kinetic energy and their distances apart are smaller than those of the molecules of a liquid
  III. Relative Humidity = $\frac{\text{Saturated vapour pressure at dew point}}{\text{Saturated vapour pressure at air temperature}}$ x 100%
  IV. The saturated vapour pressure of water increases with temperature

  Options:
  A) I only
  B) II only
  C) II and III only
  D) III and IV only
  E) II, III and IV only
  Show Answer
  The correct answer is B .
• Question 1097: Which of the following statements is correct about light and sound waves? Both Options:
  A) are longitudinal waves
  B) are transverse waves
  C) have the same velocity in air
  D) need a medium for propagation
  E) transmit energy
  Show Answer
  The correct answer is E .
• Question 1098:

  A car moving with a speed of 90kmh^-1 was brought uniformly to rest by the application of the brakes in 10s. How far did the car travel after the brakes were applied?

  Options:
  A) 125m
  B) 150m
  C) 250m
  D) 15km
  Show Answer
  The correct answer is A .
• Question 1099: A simple pendulum has a period of 17.0s. When the length is shorten by 1.5m, its period is 8.5s. Calculate the original length of the pendulum Options:
  A) 4.0 m
  B) 3.0 m
  C) 2.0 m
  D) 1.5 m
  Show Answer
  The correct answer is C .
• Question 1100: In the process of electrification by induction, the amount of induced charge in relation to the inducing charge is the Options:
  A) same in sign and quantity
  B) same in sign but greater
  C) opposite in sign but greater
  D) opposite in sign but less
  E) opposite in sign but equal
  Show Answer
  The correct answer is E .