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: Longitudinal waves do not exhibit Options:
  A) Refraction
  B) Reflection
  C) Diffraction
  D) Polarization
  E) Rarefaction
  Show Answer
  The correct answer is D .
• Question 2: For a short sighted person, light rays from a point on a very distant object is focused Options:
  A) in front of the retina
  B) on the retina by a converging lens
  C) behind the retina by a diverging lens
  D) in front of the retina, a distance 2F from the lens
  Show Answer
  The correct answer is A .
• Question 3:

  The equation of a wave travelling along the positive x-direction is given by;

  Y = 0.25 x 10^-3 sin (500t - 0.025x).

  Determine the angular frequency of the wave motion.

  Options:
  A) 0.25 x 10^-3rad s^-1
  B) 0.25 x 10^-1rad s^-1
  C) 5.00 x 10²rad s^-1
  D) 2.50 x 10³rad s^-1
  Show Answer
  The correct answer is C .
• Question 4:

  A step-down transformer is used on a 2.2 kV line to deliver 110 V. How many turns are on the primary windings if the secondary has 25 turns?

  Options:
  A) 20
  B) 250
  C) 200
  D) 500
  Show Answer
  The correct answer is D .
• Question 5:

  An alternating current can induce voltage because it has

  Options:
  A) ripple value
  B) varying magnetic field
  C) weaker magnetic field than direct current
  D) high peak value
  Show Answer
  The correct answer is B .
• Question 6:

  The process whereby a liquid turns spontaneously into vapour is called

  Options:
  A) regelation
  B) evaporation
  C) boiling
  D) sublimation
  Show Answer
  The correct answer is B .
• Question 7: In a tuned radio receiver R, L, C series circuit for resonance, the inductive and capacitive reactance X_L and X_C respectively are related as Options:
  A) X_L = X_C
  B) X_L = ¹/₂X_C
  C) X_L = ¹/_XC
  D) X_L = 2X_C
  Show Answer
  The correct answer is A .
• Question 8:

  

  A uniform light beam XZ is Hinged at X and kept in equilibrium by the forces T and F as shown in the diagram above. if XO = 20m and OY = 30cm, express T in terms of F

  Options:
  A) T =2√3/3
  B) T= 2F
  C) T = 5V3F/3
  D) T = 5F
  Show Answer
  The correct answer is D .
• Question 9:

  The temperature gradient across a copper rod of thickness 0.02m, maintained at two temperature junctions of 20º and 80ºC respectively is?

  Options:
  A) 3.0 x 10${}^2$km${}^{-1}$
  B) 3.0 x 10${}^3$km${}^{-1}$
  C) 5.0 x 10${}^3$km${}^{-1}$
  D) 3.0 x 10${}^4$km${}^{-1}$
  Show Answer
  The correct answer is B .
• Question 10: A gas has a volume of 100cm³ at 27^oC. If it is heated to temperature T until a final volume of 120cm³ is attained, calculate T Options:
  A) 33^oC
  B) 60^oC
  C) 87^oC
  D) 114^oC
  Show Answer
  The correct answer is C .