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 2441: The electrochemical equivalent of a metal is 1.3 x 10^-7kgC^-1. The mass of the metal which 2.0 x 10⁴C of electricity will deposit from a suitable electrolyte is Options:
  A) 6.5 x 10^-2kg
  B) 2.6 x 10^-2kg
  C) 6.5 x 10^-3kg
  D) 2.6 x 10^-3kg
  Show Answer
  The correct answer is D .
• Question 2442: A piece of wood is floating on water. The forces acting on the wood are Options:
  A) upthrust and reaction
  B) weight and reaction
  C) weight and upthrust
  D) upthrust and viscousity
  E) weight and viscousity
  Show Answer
  The correct answer is C .
• Question 2443: Which of the following is a scalar quantity? Options:
  A) Tension
  B) Weight
  C) Impulse
  D) Upthrust
  E) Distance
  Show Answer
  The correct answer is E .
• Question 2444:

  The Earth's magnetic equator passes through Jos in Nigeria. At Jos, the

  Options:
  A) angle of variation is zero
  B) magnetic declination is 90
  C) angle of dip is zero
  D) horizontal component at the Earth's field is zero
  Show Answer
  The correct answer is C .
• Question 2445: The most suitable type of mirror used for the construction of the search light is the Options:
  A) concave mirror
  B) convex mirror
  C) spherical mirror
  D) parabolic mirror
  Show Answer
  The correct answer is D .
• Question 2446:

  

  A force varying linearly with the distance acts on a body as shown above, The work done on the body by the force during the first 10m of motion is

  Options:
  A) 100J
  B) 150J
  C) 200J
  D) 300J
  E) 600J
  Show Answer
  The correct answer is A .
• Question 2447:

  Which of the following instruments may be used to measure relative humidity?

  Options:
  A) Hydrometer
  B) Manometer
  C) Hygrometer
  D) Hypsometer
  Show Answer
  The correct answer is C .
• Question 2448:

  

  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 2449: A 5kg block is released from rest on a smooth plane inclined at an angle of 30^o to the horizontal. What is the acceleration down the plane? [g = 10ms^-2] Options:
  A) 5.0 ms^-2
  B) 5.8 ms^-2
  C) 8.7 ms^-2
  D) 25.0 ms^-2
  Show Answer
  The correct answer is A .
• Question 2450:

  Which process is responsible for production of energy in stars?

  Options:
  A) Nuclear reaction
  B) Nuclear fission
  C) Nuclear fusion
  D) Radioactive decay
  Show Answer
  The correct answer is C .