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 1001: A planet has mass m₁ and is at a distance r, from the sun. A second planet has mass m₂ = 10m₁ and at a distance of r₂ = 2r₁ from the sun. Determine the ratio of the gravitational force experienced by the planets. Options:
  A) 1 : 5
  B) 2 : 5
  C) 3 : 5
  D) 4 : 5
  Show Answer
  The correct answer is B .
• Question 1002: If the focal length of a camera lens is 20cm, the distance from the film at which the lens must be set to produce a sharp image of an object 100cm away is Options:
  A) 17cm
  B) 20cm
  C) 25cm
  D) 100cm
  Show Answer
  The correct answer is C .
• Question 1003:

  I. All the three forces must be concurrent.

  II. The upward force is equal to the downward force.

  III. The algebraic sum of the moment about any point must be zero.which of the above conditions must hold for a body acted upon by a system of three coplanar forces equilibrium?

  Options:
  A) I and II only
  B) I and III only
  C) II and III only
  D) I, II and III
  Show Answer
  The correct answer is B .
• Question 1004: A series RLC circuit is said to resonate, when Options:
  A) capacitive reactance is zero
  B) conductance is maximum
  C) current is minimum
  D) impedance is minimum
  E) inductive reactance is zero
  Show Answer
  The correct answer is D .
• Question 1005:

  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 1006:

  

  The figure above shows displacement-time graphs for three different motions. which of the following statements is correct

  Options:
  A) graph 2 corresponds to the highest velocity
  B) graph 1 corresponds to zero gravity
  C) graph 3 corresponds to a particle moving in the negative x direction
  D) graph 2 corresponds to a particle moving in the positive x direction
  Show Answer
  The correct answer is D .
• Question 1007: One of the conditions necessary for an object to be in equilibrium when acted upon by a number of parallel forces is that the vector sum of the forces is Options:
  A) Average
  B) Zero
  C) Negative
  D) Positive
  Show Answer
  The correct answer is B .
• Question 1008: A projection lantern is used to give the image of a slide on a screen. If the image is 24 times as large as the slide and the screen is 72.0m from the projecting lens, what is the position of the slide from the lens? Options:
  A) 0.3m
  B) 3.0m
  C) 3.5m
  D) 4.0m
  Show Answer
  The correct answer is B .
• Question 1009: Which of the following statements about evaporation and boiling is FALSE? Options:
  A) Evaporation may take place at any temperature.
  B) In evaporation, vapour escapes only from the surface of a liquid
  C) The temperature remains constant as long as the liquid is boiling
  D) The temperature at which boiling takes place can be altered by changing the external pressure
  E) The rate of evaporation does not depend on temperature.
  Show Answer
  The correct answer is E .
• Question 1010:
  

  The diagram above illustrates the penetrating power of some types of radiation. X, Y and Z are likely

  Options:
  A) X = α-particle; Y = γ-ray; Z = β-particle
  B) X = α-particle; Y = β-particle; Z = γ-ray
  C) X = γ-ray; Y = α-particle; Z = β-particle
  D) X = β-particle; Y = γ-ray; Z = α-particle
  Show Answer
  The correct answer is C .