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 1161:

  Which of the following is/are TRUE of nuclear fission? I. A heavy nucleus is split into two nuclei of comparable masses

  II. Two light nuclei are joined together to form a heavier nucleus

  III. The total mass of the products is less than that of the reactants

  Options:
  A) I only
  B) II only
  C) III only
  D) I and III only
  E) II and III only
  Show Answer
  The correct answer is D .
• Question 1162: In a ray diagram for a thin converging lens, a ray that is not parallel to the optic axis but passes through the optic center will Options:
  A) pass through undeviated
  B) pass through the center of curvature after refraction
  C) emerge parallel to the principal axis
  D) pass through the principal focus after refraction
  Show Answer
  The correct answer is A .
• Question 1163: A cone in an unstable equilibrium has its potential energy Options:
  A) decreased
  B) increased
  C) unchanged
  D) oscillating
  Show Answer
  The correct answer is B .
• Question 1164:

  

  The diagram above shows a velocity - time graph. The statement that is true about this motion is that the car

  Options:
  A) has no acceleration between point F and G
  B) decelerates between F and H
  C) has a constant soeed between points E and F
  D) Accelerates between points F and G
  Show Answer
  The correct answer is A .
• Question 1165: A body of mass 4kg is acted on by a constant force of 12N for 3 seconds. The kinetic energy gained by the body at the end of the time is Options:
  A) 144J
  B) 162J
  C) 81J
  D) 72J
  Show Answer
  The correct answer is B .
• Question 1166:

  When light of a certain frequency is incident on a metal surface, no photoelectrons are emitted. If the frequency of the light is increased, what happens to the stopping potential?

  Options:
  A) The stopping potential does not change.
  B) The stopping potential decreases.
  C) The stopping potential can either increase or decrease, depending on the intensity of the light.
  D) The stopping potential increases.
  Show Answer
  The correct answer is D .
• Question 1167:

  The refractive index of a liquid is 1.5. If the velocity of light in vacuum is 3.0 x 10${}^{8}m{s}^{-1}$, the velocity of light in the liquid is

  Options:
  A) 1.5 x 10${}^{8}m{s}^{-1}$
  B) 2.0 x 10${}^{8}m{s}^{-1}$
  C) 3.0 x 10${}^{8}m{s}^{-1}$
  D) 4.5 x 10${}^{8}m{s}^{-1}$
  Show Answer
  The correct answer is B .
• Question 1168: An object 8cm in front of a plane mirror moves at a speed of 6cm s^-1 away from the mirror. What will be the distance separating the object and the image after 2s? Options:
  A) 8cm
  B) 12cm
  C) 20cm
  D) 28cm
  E) 40cm
  Show Answer
  The correct answer is E .
• Question 1169: A conductor has a diameter of 1.00 mm and length 2.00m. if the resistance of the material is 0.1Ω, its resistivity is? Options:
  A) 2.55 x 10⁵ Ωm
  B) 2.55 x 10² Ωm
  C) 3.93 x 10^-6 Ωm
  D) 3.93 x 10^-8 Ωm
  Show Answer
  The correct answer is D .
• Question 1170:

  One of the following readings represents the measurement of thelength of a metal rod using vernier callipers. Taking the reading accuracy into consideration, the most likely one is

  Options:
  A) 5.16cm
  B) 5.165cm
  C) 5.0cm
  D) 5.160cm
  Show Answer
  The correct answer is A .