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 2041: Which of the following is a percussion instrument? Options:
  A) bell
  B) flute
  C) guitar
  D) piano
  E) organ
  Show Answer
  The correct answer is A .
• Question 2042: 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 2043: Electric charges on the surface of a conductor would be most evenly distributed if the shape of the conductor is Options:
  A) conical
  B) cubical
  C) cylindrical
  D) parabolic
  E) spherical
  Show Answer
  The correct answer is C .
• Question 2044: The value of x, y and z respectively in the expression M^xL^yT^z for the universal gravitational constant G are Options:
  A) 2, -3, -2
  B) -1, 3, -2
  C) -1, 2, -3
  D) -2, -1, 3
  Show Answer
  The correct answer is B .
• Question 2045:

  

  What is the resultant capacitance of the circuit?

  Options:
  A) 1.5µF
  B) 18.0µF
  C) 6.0µF
  D) 6.8µF
  E) 8.83µF
  Show Answer
  The correct answer is A .
• Question 2046: 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 .
• Question 2047:

  A cell can supply current of 0.4 A and 0.2 A through a 4.0Ω and 10.0Ω resistors respectively.

  This internal resistance of the cell is

  Options:
  A) 2.0Ω
  B) 1.0Ω
  C) 2.5Ω
  D) 1.5Ω
  Show Answer
  The correct answer is A .
• Question 2048:

  

  In the circuit above, The potential across each capacitor is 100V. The total energy stored in the two capacitors is

  Options:
  A) 3.0 x 10⁴J
  B) 3.0 x 10²J
  C) 2.5 x 10^-2J
  D) 6.0 x 10^-3J
  Show Answer
  The correct answer is C .
• Question 2049: Calculate the work done when a force of 20N stretches a spring by 50mm. Options:
  A) 0.5J
  B) 1.5J
  C) 2.0J
  D) 2.5J
  Show Answer
  The correct answer is A .
• Question 2050:

  A positively charged rod X is brought near an uncharged metal sphere Y and is then touched by a finger with X still in place. When the finger is removed, the result is that Y has

  Options:
  A) no charge and a zero potential
  B) a positive charge and a zero potential
  C) a negative charge and a positive potential
  D) a negative charge and a negative potential
  Show Answer
  The correct answer is D .