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 991: 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 992:

  

  In the figure above W1 = 200g, and W2 =450g . Calculate the extension of the spring per unit load? [g = 10ms^-2]

  Options:
  A) 6.0 x 10^-5mN^-1
  B) 2.5 x 10^-4mN^-1
  C) 6.0 x 10 ^-3mN^-1
  D) 2.5 x 10 ^-2mN^-1
  Show Answer
  The correct answer is C .
• Question 993: N.N.P.C. gas cylinder containing 15kg of cooking gas was left open, and the gas emptied in 3.8 minutes, at an average speed of 20 ms^-1. What force was exerted on the gas in the cylinder? Options:
  A) 132N
  B) 13.2N
  C) 1.32N
  D) 0.132N
  E) 0.013N
  Show Answer
  The correct answer is C .
• Question 994: Mercury is suitable as a barometric fluid because it Options:
  A) expands uniformly
  B) is opaque
  C) is several times denser than water
  D) is a good conductor of heat
  Show Answer
  The correct answer is C .
• Question 995: Two lamps are rated 40W and 220V each are connected in series. The total power dissipated in both lamps is Options:
  A) 10W
  B) 20W
  C) 40W
  D) 80W
  E) None of the above
  Show Answer
  The correct answer is D .
• Question 996: Which of the following statements is correct about light and sound waves? Both Options:
  A) are longitudinal waves
  B) are transverse waves
  C) have the same velocity in air
  D) need a medium for propagation
  E) transmit energy
  Show Answer
  The correct answer is E .
• Question 997: In which of the following is surface tension important? Options:
  A) the floating of a ship in water
  B) the floating of a dry needle in water
  C) the floating of a baloon in air
  D) the diffusion of sugar solution across a membrane
  Show Answer
  The correct answer is B .
• Question 998:

  

  The net capacitance of the circuit shown above is

  Options:
  A) 8.0µF
  B) 6.0µF
  C) 4.0µF
  D) 2.0µF
  Show Answer
  The correct answer is D .
• Question 999: The electromagnetic waves that are sensitive to temperature changes are Options:
  A) X-rays
  B) Gamma-rays
  C) Ultra-violet rays
  D) Infra-red rays
  Show Answer
  The correct answer is D .
• Question 1000:

  

  The value of T in the figure above is

  Options:
  A) 30N
  B) 10.0N
  C) 20N
  D) 40N
  Show Answer
  The correct answer is D .