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 1661: A man 1.5m tall is standing 3m in front of a pinhole camera whose distance between the hole and the screen is 0.1m. What is the height of the image of the man on the screen? Options:
  A) 0.05m
  B) 0.15m
  C) 0.30m
  D) 1.00m
  Show Answer
  The correct answer is A .
• Question 1662:

  The impulse of a force is deduced from Newton's second law as

  Options:
  A) F = ma
  B) F = m($\frac{v-u}{t}$)
  C) F = mg
  D) F = mv - mu
  Show Answer
  The correct answer is B .
• Question 1663: The force required to make an object of mass m, travelling with velocity v, turn in a circle of radius r is Options:
  A) $\frac{m{v}^2}{r}$
  B) $\frac{m{r}^2}{v}$
  C) $\frac{mr}{v}$
  D) $\frac{mv}{r^2}$
  E) $\frac{mv}{r}$
  Show Answer
  The correct answer is A .
• Question 1664: Which of the following phenomena CANNOT be explained by the molecular theory of matter? Options:
  A) Expansion
  B) Conduction
  C) Convection
  D) Radiation
  E) Evaporation
  Show Answer
  The correct answer is D .
• Question 1665: An object is projected with a velocity of 50ms^-1 from ground level at an angle θ to the vertical. If the total time of flight of the projectile is 5s, what is the value of θ? (g = 10ms^-2) Options:
  A) 0°
  B) 30°
  C) 45°
  D) 60°
  E) 90°
  Show Answer
  The correct answer is B .
• Question 1666:

  If the stress on a wire is 10${}^7$NM${}^{-2}$ and the wire is stretched from its original length of 10.00m to 10.05m. The young'smodulus of the wire is?

  Options:
  A) 5.0 x 10${}^{-4}$Nm${}^{-2}$
  B) 5.0 x 10${}^{-5}$Nm${}^{-2}$
  C) 2.0 x 10${}^{-8}$Nm${}^{-2}$
  D) 2.0 x 10${}^9$Nm${}^{-2}$
  Show Answer
  The correct answer is D .
• Question 1667: An electric kettle, connected to a 240V mains, produces 6.0 x 10⁵J of heat energy to boil a quantity of water in 5 minutes. Find the resistance of the kettle. Options:
  A) 14.4$\mathrm{\Omega }$
  B) 28.8$\mathrm{\Omega }$
  C) 144$\mathrm{\Omega }$
  D) 288$\mathrm{\Omega }$
  E) 2880$\mathrm{\Omega }$
  Show Answer
  The correct answer is B .
• Question 1668: 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 1669: If the Nigeria flag (green, white, green) is viewed in pure yellow light, which of the following set of colours would be observed on the flag? Options:
  A) Green, yellow, green
  B) Red, yellow, red
  C) black, yellow, black
  D) Green, white, green
  Show Answer
  The correct answer is A .
• Question 1670:

  For the correction of myopic defects in the human eye we require

  Options:
  A) a convex lens
  B) a concave lens
  C) a combination of concave and convex lenses
  D) a prism
  E) a concave mirror
  Show Answer
  The correct answer is B .