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 151: Which statement is NOT correct about Rutherford’s model of the atom? Options:
  A) The diameter of the nucleus is of the order of 10-15m
  B) The mass of an atom is concentrated in the nucleus
  C) The model is applicable to atoms with one electron in the outer shell
  D) The nucleus of an atom is positively charged
  E) The nucleus is surrounded by an electron cloud.
  Show Answer
  The correct answer is C .
• Question 152: Which of the following statements about defects of vision is/are CORRECT? i. for a long sighted person, close objects appear blurred. ii. for a short sighted person, distant objects appear blurred. iii. short sight is corrected by using a pair of converging lenses. Options:
  A) i only
  B) ii only
  C) i and ii only
  D) ii and iii only
  E) i, ii and iii
  Show Answer
  The correct answer is C .
• Question 153: The production and type of charge of a body can only be accounted for by the? Options:
  A) deficiency or surplus of electrons
  B) equibrium in protons and neutrons
  C) deficiency or surplus of protrons
  D) deficiency or surplus of neutrons
  Show Answer
  The correct answer is A .
• Question 154:

  Which of the following is a type of wave that is both mechanical and longitudinal?

  Options:
  A) Water waves
  B) Seismic waves
  C) Sound waves
  D) Light waves
  Show Answer
  The correct answer is C .
• Question 155: A piece of rubber 10cm long stretches 6mm when a load of 100N is hung from it. What is the strain? Options:
  A) 60
  B) 6
  C) 6 x 10^-2
  D) 6 x 10^-3
  E) 0.6
  Show Answer
  The correct answer is C .
• Question 156: Two metals P and Q of length l₁ and l₂ are heated through the same temperature difference. If the ratio of the linear expansivities of P to Q is 2:3 and the ratio of lengths is 3:4. What is the ratio of increase in length of P to Q? Options:
  A) 7:5
  B) 5:7
  C) 1:2
  D) 2:1
  Show Answer
  The correct answer is C .
• Question 157: The heat from the sun reaches the earth by the process Options:
  A) insulation
  B) precipitation
  C) conduction
  D) convection
  E) radiation
  Show Answer
  The correct answer is E .
• Question 158: 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 159: In 24 days a radioactive isotope decreases in mass from 128g to 2g. What is the half-life of the radioactive material? Options:
  A) 2.54 days
  B) 4.00 days
  C) 4.80 days
  D) 6.00 days
  E) 8.00 days
  Show Answer
  The correct answer is B .
• Question 160: A wheel and axle is used to raise a load of 500 N by the application of an effort of 250 N. If the radii of the wheel and the axle are 0.4 cm and 0.1 cm respectively, the efficiency of the machine is Options:
  A) 20 %
  B) 40 %
  C) 50 %
  D) 60 %
  Show Answer
  The correct answer is C .