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 2401: Which of the following is true of an electrical charge? Options:
  A) positive charge means deficit electrons
  B) negative charge means excess of electrons
  C) electric current means movement of electrons
  D) all of the above
  E) A and B only
  Show Answer
  The correct answer is D .
• Question 2402: Which of the following electromagnetic waves is least energetic? Options:
  A) Infra-red rays
  B) X-rays
  C) Ultra-violet rays
  D) Gamma rays
  Show Answer
  The correct answer is A .
• Question 2403: The principle of operation of an induction coil is based on Options:
  A) Ohm's law
  B) Amphere's law
  C) Faraday's law
  D) Columbs law
  Show Answer
  The correct answer is C .
• Question 2404: A solid of weight 0.600N is totally immersed in oil and water respectively. If the upthrust of oil is 0.210N and the relative density of oil is 0.875. Find the upthrust in water. Options:
  A) 0.600N
  B) 0.360N
  C) 0.240N
  D) 0.180N
  Show Answer
  The correct answer is C .
• Question 2405: The atmospheric pressure due to water is 1.3 x 10⁶Nm^-2. What is the total pressure at the bottom of an ocean 10m deep? [Density of water = 1000kgm^-3, g = 10ms^-2] Options:
  A) 1.3 x 10⁷Nm^-2
  B) 1.4 x 10⁶Nm^-2
  C) 1.4 x 10⁵Nm^-2
  D) 1.0 x 10 ⁵Nm^-2
  Show Answer
  The correct answer is B .
• Question 2406:
  

  A 400 N box is being pushed across a level floor at a constant speed by a force P of 100 N at an angle of 30.0° to the horizontal, as shown in the the diagram below. What is the coefficient of kinetic friction between the box and the floor?

  Options:
  A) 0.19
  B) 0.24
  C) 0.40
  D) 0.22
  Show Answer
  The correct answer is A .
• Question 2407: A boy observes a piece of stone at the bottom of a river 6.0m deep. If he looks from the surface of the river, what is the apparent distance of the stone from him? [Refractive Index of Water = 4/3] Options:
  A) 8.0m
  B) 5.5m
  C) 5.0m
  D) 4.5m
  Show Answer
  The correct answer is D .
• Question 2408:

  Calculate the absolute pressure at the bottom of a lake at a depth of 32.8 m. Assume the density of the water is 1 x 10^3 kgm-3 and the air above is at a pressure of 101.3 kPa.

  [Take g = 9.8 ms-2]

  Options:
  A) 422.7
  B) 220.14
  C) 464.53
  D) 321.74
  Show Answer
  The correct answer is A .
• Question 2409:

  Which of the following liquid is a poor conductor of electricity?

  Options:
  A) Distilled water
  B) Tap water
  C) Sea water
  D) Drinking water
  Show Answer
  The correct answer is A .
• Question 2410:

  

  The fig above represents the main sequence of energy conversion at Kainji dam. What is the efficiency of the system?

  Options:
  A) Q1/Q2
  B) E/Q1
  C) E/(Q1-Q2)
  D) E/(Q1-Q2)
  Show Answer
  The correct answer is B .