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 1201: 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 1202: An electric current of 3Aflowing through an electric heating elements of resistance 20 embedded in 1,000g of an oil raises the temperature of the oil by 10^oC in 10 seconds then the specific heat capacity of the oil is Options:
  A) 1.8Jg^-1oC
  B) 0.6Jg^-1oC
  C) 0.18Jg^-1oC
  D) 18Jg^-1oC
  E) 0.06Jg^-1oC
  Show Answer
  The correct answer is C .
• Question 1203:

  A certain manufacturer wishes to make an n-type semiconductor. Which materials would he select for doping?

  Options:
  A) boron and antimony
  B) aluminium and antimony
  C) aluminium and indium
  D) arsenic and antimony
  Show Answer
  The correct answer is D .
• Question 1204:

  

  The diagram above show s the force-extension curve of a piece of wire. The energy stored when the wire is stretched from E to F is

  Options:
  A) 7.5 x 10^-3J
  B) 2.5 x 10^-3J
  C) 1.5 x 10^-2J
  D) 7.5 x 10^-1J
  Show Answer
  The correct answer is A .
• Question 1205: When equal weights of iron and water are subjected to equal supply of heat, it is found that the piece of iron become more hotter than water after a short time because Options:
  A) the specific heat of iron is higher than that of water
  B) iron is in solid form
  C) water is in liquid form
  D) the specific heat of water is higher than that of iron
  E) the specific heat of iron is infinite
  Show Answer
  The correct answer is D .
• Question 1206: Which of the following is NOT a vector quantity? Options:
  A) Force
  B) Altitude
  C) weight
  D) Displacement
  E) Acceleration
  Show Answer
  The correct answer is B .
• Question 1207: Which of the following instruments has a pure tone? Options:
  A) guitar
  B) vibrating strings
  C) tuning fork
  D) siren
  Show Answer
  The correct answer is C .
• Question 1208:

  

  Two mirrors M1 and M2 are inclined at right angles as shown above calculate the angle of reflection of the ray of light at M2

  Options:
  A) ${30}^{\circ }$
  B) ${45}^{\circ }$
  C) ${60}^{\circ }$
  D) ${90}^{\circ }$
  Show Answer
  The correct answer is C .
• Question 1209:

  

  A uniform meter rule QR is balanced on a knife edge which is 55cm from R, when a mass of 10g is hung at P as shown above, the mass of the meter rule is (Note that QP is 10cm)

  Options:
  A) 550g
  B) 350g
  C) 70g
  D) 35g
  Show Answer
  The correct answer is C .
• Question 1210: The amplitude of oscillation of a simple pendulum bob diminishes slowly because Options:
  A) energy is applied by some external agencies
  B) frictional forces dissipate the energy of motion
  C) the frequency of oscillation increases with the mass of the bob
  D) the frequency of oscillation varies with time
  E) the period of oscillation varies with time.
  Show Answer
  The correct answer is A .