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 1321: Which of the following factors affects the speed of sound in air? i. Temperature ii. pressure iii. Frequency Options:
  A) i only
  B) ii only
  C) i and ii only
  D) ii and iii only
  Show Answer
  The correct answer is C .
• Question 1322: Silicon doped with aluminum and germanium doped with arsenic become? Options:
  A) p- and n- types respectively
  B) n- en p- type respectively
  C) p- type semiconductor
  D) n- type semiconductors
  Show Answer
  The correct answer is A .
• Question 1323: A gas would serve as an electrical conductor under Options:
  A) reduced pressure and high current
  B) increased magnetic field
  C) reduced pressure and reduced potential
  D) exposure to visible light
  Show Answer
  The correct answer is A .
• Question 1324: The resistance in a series R-C circuit is 5 Ω. If the impedance of the circuit is 13 Ω, calculate the reactance of the capacitor Options:
  A) 65 Ω
  B) 18 Ω
  C) 16 Ω
  D) 14 Ω
  E) 12 Ω
  Show Answer
  The correct answer is E .
• Question 1325: A body of mass 4 kg is accelerated from rest by a steady force of 9N. What is its speed when it has travelled a distance of 8m? Options:
  A) 6 ms^-1
  B) 18 ms^-1
  C) 32 ms^-1
  D) 36 ms^-1
  E) 48 ms^-1
  Show Answer
  The correct answer is A .
• Question 1326: A stone is thrown with a speed of 10ms at an angle of 30° to the horizontal, Calculate its time of flight, (g = 10ms²) Options:
  A) 0.5s
  B) 1.0s
  C) 1.7s
  D) 2.0s
  E) 3.4s
  Show Answer
  The correct answer is B .
• Question 1327:

  

  A body of mass 40kg is being dragged along the floor by a rope inclined at 60 degrees to the horizontal. The frictional force between the box and the floor is 100N and the tension on the rope is 300N. How much work is done by dragging the box for a distance of 4m

  Options:
  A) 680J
  B) 400J
  C) 200J
  D) 100J
  Show Answer
  The correct answer is C .
• Question 1328: The rate of cooling of a heated quantity of liquid in an enclosure depends on the Options:
  A) Pressure of the liquid
  B) Temperature in the enclosure
  C) Pressure of the enclosure
  D) Volume of the liquid
  Show Answer
  The correct answer is B .
• Question 1329: 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 1330:

  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 .