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 1991:

  The mass of a nucleus is the

  Options:
  A) total number of its proton and neutrons
  B) number of its protons
  C) mass of its electrons
  D) total number of its protons and electrons
  Show Answer
  The correct answer is A .
• Question 1992: A body whose mass is 2kg and has a volume of 500cm just floats when completely immersed in a liquid. Calculate the density of the liquid Options:
  A) 4.0 x 10²kgm^-3
  B) 4.0 x 10³kgm^-3
  C) 1.0 x 10³kgm^-3
  D) 1.0 x 10⁶kgm^-3
  Show Answer
  The correct answer is B .
• Question 1993: The magnitude of the angle of dip at the equator is Options:
  A) 360^o
  B) 0^o
  C) 90^o
  D) 180^o
  Show Answer
  The correct answer is B .
• Question 1994: What happens when a gas expands at constant temperature? Options:
  A) its pressure decreases
  B) the total momentum of its molecules remains constant
  C) its pressure decreases and the total momentum of its moleculees remains constant
  D) its pressure decreses and the total kinetic energy of its molecule decreases
  Show Answer
  The correct answer is A .
• Question 1995: A boy on looking into a mirror observed that his face appeared to have grown bigger. The boy must have been looking at a Options:
  A) convex mirror with his face at the focus
  B) concave mirror with his face between the focus and the mirror
  C) concave mirror with his face at the focus
  D) convex mirror with his face between the focus and the mirror
  Show Answer
  The correct answer is B .
• Question 1996:

  A positively charged rod X is brought near an uncharged metal sphere Y and is then touched by a finger with X still in place. When the finger is removed, the result is that Y has

  Options:
  A) no charge and a zero potential
  B) a positive charge and a zero potential
  C) a negative charge and a positive potential
  D) a negative charge and a negative potential
  Show Answer
  The correct answer is D .
• Question 1997:

  

  The resultant capacitance in the figure above is

  Options:
  A) 15.0µF
  B) 9.8µF
  C) 1.3µF
  D) 0.8µF
  Show Answer
  The correct answer is D .
• Question 1998: When an object is placed between the principal focus and the optical center of a convex lens, it could be used as a? Options:
  A) Simple microscope
  B) refecting lens
  C) compound microscope
  D) projector
  Show Answer
  The correct answer is A .
• Question 1999:

  

  In the diagram above, which of the angles ${\theta }_1$ , ${\theta }_2$ , ${\theta }_3$ and ${\theta }_4$ is the angle of deviation of the ray of light passing through the glass prism XYZ?

  Options:
  A) ${\theta }_3$
  B) ${\theta }_2$
  C) ${\theta }_1$
  D) ${\theta }_4$
  Show Answer
  The correct answer is C .
• Question 2000: A boy looks at the image of an object in a plane mirror. He observes two images, a main bright one and the other faint. The observed images result from Options:
  A) reflection only
  B) refraction only
  C) diffraction and interference
  D) reflection and refraction
  E) reflection and diffraction
  Show Answer
  The correct answer is A .