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 2241:

  A man swung an object of mass 2 kg in a circular path with a rope 1.2 m long. If the object was swung at 120 rev/min, find the tension in the rope.

  Options:
  A) 400 N
  B) 288 N
  C) 240 N
  D) 379 N
  Show Answer
  The correct answer is D .
• Question 2242: 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 2243:

  The earth's gravitational field intensity at its surface is about

  (G = 6.7 × 10${}^{-11}$Nm${}^2$/kg${}^2$, mass of the earth is 6 × 10${}^{24}$kg, radius of the earth is 6.4 × 10${}^6$m, g on the earth = 9.8m/s${}^2$)

  Options:
  A) 6.7N/kg
  B) 7.9N/kg
  C) 8.0N/kg
  D) 9.8N/kg
  Show Answer
  The correct answer is D .
• Question 2244:

  An astronomical telescope is said to be in normal adjustment when the?

  Options:
  A) eye is accommodated
  B) focal length of an object lens is longer than that of eye piece
  C) final image is at the near point of eye
  D) final image is at infinity
  Show Answer
  The correct answer is D .
• Question 2245:

  

  In the circuit above, the ammeter reads a current of 5.0 A when R = 8Ω and reads 7.0A when R = 5Ω. The value of the unknown resistance X is

  Options:
  A) 10.0Ω
  B) 7.5Ω
  C) 5.0Ω
  D) 2.5Ω
  Show Answer
  The correct answer is D .
• Question 2246:
  

  In the study of Physics, temperature and heat are often confused with each other. Which of the following statements correctly defines these two elements?

   

  Options:
  A) Temperature is a measure of the average kinetic energy of the molecules of a substance
  B) Heat is a measure of the total kinetic energy of the molecules in a system
  C) Different materials require different amounts of heat to cause a given change in temperature
  D) All of the above
  Show Answer
  The correct answer is D .
• Question 2247:

  Which of the following liquids has the highest surface tension?

  Options:
  A) Soapy water
  B) Water
  C) Mercury
  D) Oil
  Show Answer
  The correct answer is C .
• Question 2248:

  

  In the diagram above, the values of V₁ and V₂ are respectively

  Options:
  A) 1V and ¹/₃V
  B) ¹/₃V and 1V
  C) ¹/₃V and ²/₃V
  D) 1V and ²/₃V
  Show Answer
  The correct answer is D .
• Question 2249: At what respective values of X, Y and Z would the unit of force, the newton, be dimensionally equivalent to M^xL^yT^z? Options:
  A) -1, 1, 2
  B) 1, 1, -2
  C) 1, -1, 2
  D) -1, 1, -2
  Show Answer
  The correct answer is B .
• Question 2250:

  The point at which the molecules of a loaded wire begin to slide across each other resulting in a rapid increase in extension is

  Options:
  A) yield point
  B) proportionality point
  C) deformation point
  D) elastic point
  Show Answer
  The correct answer is A .