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:

  Cathode rays are

  Options:
  A) High-energy electromagnetic waves
  B) protons
  C) neutrons
  D) streams of electrons
  Show Answer
  The correct answer is D .
• Question 2: 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 3: The resistance of a 5m uniform wire of cross-sectional area 0.2 x 10^-6m² is 0.425. What is the resistivity of the material of the wire? Options:
  A) 1.10 x 10^-6$\mathrm{\Omega }$m
  B) 4.25 x 10^-6$\mathrm{\Omega }$m
  C) 2.40 x 10^-7$\mathrm{\Omega }$m
  D) 1.70 x 10^-8$\mathrm{\Omega }$m
  Show Answer
  The correct answer is D .
• Question 4: Steam burn is more severe than that of boiling water because Options:
  A) steam burn is independent of relative humidity
  B) stem possesses greater heat energy per unit mass
  C) water boils at a higher temperature
  D) steam burn is dependent on relative humidity
  Show Answer
  The correct answer is B .
• Question 5:
  

  In which of the following diagrams is the length of the tube equal to one wavelength?

  Options:
  A) a
  B) b
  C) c
  D) d
  Show Answer
  The correct answer is C .
• Question 6:

  A bar magnet is placed near and lying along the axis of a solenoid connected to a galvanometer. The pointer of the galvanometer shows no deflection when?

  Options:
  A) the magnet is moved towards the stationary solenoid
  B) there is no relative motion
  C) the magnet is moved away from the stationary solenoid
  D) the solenoid is moved away from the stationary magnet
  Show Answer
  The correct answer is B .
• Question 7: A wheel and axle have radii 80cm and 10cm respectively. If the efficiency of the machine is 0.85, an applied force of 1200N to the wheel will raise a load of Options:
  A) 8.0N
  B) 6.8N
  C) 8160N
  D) 9600N
  Show Answer
  The correct answer is C .
• Question 8: An atom radiates 1.5 × 10^-19J when an electron jumps from one level to another. What is the wavelength of the emitted radiation? (Planck’s constant 6.6 × l0^-34Js ; Speed of light in vacuum = 3.0 × 108ms^-1) Options:
  A) 1.32 × 10^-6m
  B) 2.97 × 10^-6m
  C) 3.30 × 10^-6m
  D) 6.82 × 10^-6m
  E) 8.01 × 10m^-6
  Show Answer
  The correct answer is A .
• Question 9: The thermometric property of a constant volume thermometer is? Options:
  A) change in volume
  B) differential expanssion
  C) change in pressure
  D) change in length
  Show Answer
  The correct answer is C .
• Question 10: An object is projected for the hieght of 80 m above the ground with a velocity of 40ms^-1 at the angle of 30° to the horizontal. The time of flight Options:
  A) 8 s
  B) 4 s
  C) 16 s
  D) 10 s
  Show Answer
  The correct answer is B .