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 1621:

  

  The velocity time graph above describes the motion of a particle between two points P and Q. What is the distance between P and Q?

  Options:
  A) 17.0m
  B) 18.0m
  C) 22.5m
  D) 30.0m
  Show Answer
  The correct answer is B .
• Question 1622: An engineer intends to deviate a light ray from its path by 120^o through reflection from a plane mirror. Calculate the angle of incidence Options:
  A) 60^o
  B) 40^o
  C) 30^o
  D) 20^o
  Show Answer
  The correct answer is C .
• Question 1623:

  The density of 400cm³ of palm oil was 0.9gcm^-3 before frying. If the density of the oil was 0.6gcm^-3 after frying, assuming no loss of oil due to spilling, its new volume was?

  Options:
  A) 1360cm${}^3$
  B) 600cm${}^3$
  C) 240cm${}^3$
  D) 8000m${}^3$
  Show Answer
  The correct answer is B .
• Question 1624: A plane sound wave of frequency 85.5Hz and velocity 342ms^-1 is reflected from a vertical wall. At what distance from the wall does the wave have antinode? Options:
  A) 2m
  B) 4m
  C) 1m
  D) 3m
  Show Answer
  The correct answer is C .
• Question 1625: Which of the following statements is Not true about atoms? Options:
  A) Atom of different elements have different atomic weights
  B) The mass of an atom is concentrated in the nucleus
  C) An atom is made up of a nucleus and number of electrons
  D) Atoms of all elements are identical
  Show Answer
  The correct answer is D .
• Question 1626:

  

  The wave phenomenon demonstrated in the diagram above is

  Options:
  A) reflection
  B) deflection
  C) diffraction
  D) refraction
  Show Answer
  The correct answer is C .
• Question 1627:

  

  The diagram above represents the stress-strain graph of a loaded wire. Which of these statements is correct?

  Options:
  A) At J, the wire becomes plastic
  B) J is the yield point
  C) L is the elastic limit
  D) At K, the wire breaks
  Show Answer
  The correct answer is B .
• Question 1628: An electric kettle, connected to a 240V mains, produces 6.0 x 10⁵J of heat energy to boil a quantity of water in 5 minutes. Find the resistance of the kettle. Options:
  A) 14.4$\mathrm{\Omega }$
  B) 28.8$\mathrm{\Omega }$
  C) 144$\mathrm{\Omega }$
  D) 288$\mathrm{\Omega }$
  E) 2880$\mathrm{\Omega }$
  Show Answer
  The correct answer is B .
• Question 1629: Heat losses to the surrounding is possible through the following except Options:
  A) Conduction
  B) Convection
  C) Radiation
  D) Expansion
  Show Answer
  The correct answer is D .
• Question 1630: The velocity ratio of an inclined plane where angle of inclination in θ is Options:
  A) Sinθ
  B) Cosθ
  C) Tanθ
  D) $\frac{1}{\sin \theta }$
  Show Answer
  The correct answer is D .