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 111:

  Arrange the following in the order of their increasing frequency.I. Visible light

  II. Gamma rays

  III. Radio waves

  IV. Infra-red radiation

  V. Ultra-violet radiation

  Options:
  A) I, II, III, IV, V
  B) II, III, IV, V, I
  C) III, IV, V, I, II
  D) IV, III, I. V, II
  E) III, IV, I,V, II
  Show Answer
  The correct answer is E .
• Question 112: A train has an initial velocity of 44ms^-1 and an acceleration of -4ms^-1. Its velocity after 10 seconds is Options:
  A) 2ms^-1
  B) 4ms^-1
  C) 8ms^-1
  D) 12ms^-1
  E) 16ms^-1
  Show Answer
  The correct answer is B .
• Question 113: The vibration of an air column produces the sound in the Options:
  A) piano
  B) guiter
  C) flute
  D) school handbell
  Show Answer
  The correct answer is C .
• Question 114: A machine requires 1000J of work to raise a load of 500N through a vertical distance of 1.5m. Calculate the efficiency of the Options:
  A) 80%
  B) 75%
  C) 50%
  D) 33%
  Show Answer
  The correct answer is B .
• Question 115: The electrochemical equivalent of platinum is 5.0 x 10^-7kgC^-1 to plate-out 1.0kg of platinum, a current of 100A must be passed through an appropriate vessel for Options:
  A) 5.6 hours
  B) 56 hours
  C) 1.4 x 10^{4 hours}
  D) 2.0 x 10^{4 hours}
  Show Answer
  The correct answer is A .
• Question 116: A trough 12.0cm deep is filled with water of refractive index $\frac{4}{3}$. By how much would a coin at the bottom of the trough appear to be displaced when viewed vertically from above the water surface? Options:
  A) 3.0cm
  B) 6.0cm
  C) 9.0cm
  D) 16.0cm
  Show Answer
  The correct answer is A .
• Question 117: The accurate measurement of the relative density of a substance in its powdered form is done with a beam balance and Options:
  A) a density bottle
  B) an eureka can
  C) a pipette
  D) a burette
  Show Answer
  The correct answer is A .
• Question 118: The driving mirror of a car has a radius of curvature of 1m. A vehicle behind the car is 4m from the mirror. Find the image distance behind the mirror. Options:
  A) 8/7
  B) 4/9
  C) 9/2
  D) 4/7
  Show Answer
  The correct answer is B .
• Question 119:

  A ball of mass 0.1kg is thrown vertically upwards with a speed of 10ms${}^{-1}$ from the top of a tower 10m high. Neglecting air resistance, its total energyjust before hitting the ground is? (Take g = 10ms${}^{-2}$)

  Options:
  A) 5J
  B) 10J
  C) 15J
  D) 20J
  Show Answer
  The correct answer is C .
• Question 120: A vapour is said to be saturated when Options:
  A) a dynamic equilibrium exists between liquid molecules and the vapour molecules
  B) a dynamic aquilibrium exists such that more molecules return to the liquid than are living it
  C) the temperature of the vapour varies
  D) the vapour pressure is atmospheric
  Show Answer
  The correct answer is A .