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 2681: A solid of weight 0.600N is totally immersed in oil and water respectively. If the upthrust of oil is 0.210N and the relative density of oil is 0.875. Find the upthrust in water. Options:
  A) 0.600N
  B) 0.360N
  C) 0.240N
  D) 0.180N
  Show Answer
  The correct answer is C .
• Question 2682:

  

  The total resistance measured at PQ in the diagram above is

  Options:
  A) 18.0Ω
  B) 11.0Ω
  C) 4.0Ω
  D) 2.0Ω
  Show Answer
  The correct answer is C .
• Question 2683: A ray of light strikes a plane mirror at an angle of incidence of 35°. If the mirror is rotated through 10°, through what angle is the reflected ray rotated? Options:
  A) 70°
  B) 45°
  C) 25°
  D) 20°
  Show Answer
  The correct answer is D .
• Question 2684:

  An explosion occurs at an altitude of 312 m above the ground. If the air temperature is -10.00°C, how long does it take the sound to reach the ground?

  [velocity of sound at $0^{o}C$ = 331 ms-1]

  Options:
  A) 0.94s
  B) 0.96s
  C) 0.93s
  D) 0.95s
  Show Answer
  The correct answer is B .
• Question 2685: Which of the following is NOT an example of a percussion instrument? Options:
  A) Bell
  B) Drum
  C) Flute
  D) Gong
  E) Xylophone
  Show Answer
  The correct answer is C .
• Question 2686: Which of the following could be effectively used to reduce friction? Options:
  A) kerosene
  B) grease
  C) water
  D) petrol
  Show Answer
  The correct answer is B .
• Question 2687: Which of the following statements is true about liquid pressure is NOT correct? The pressure Options:
  A) at a point in a liquid is proportional to the depth
  B) at any point in a liquid is the same at the same level
  C) is exerted equally in all directions at any point
  D) of a liquid at any point on the wall of its container acts in a direction perpendicular to the wall
  E) at a particular depth depends on the shape of the vessel
  Show Answer
  The correct answer is E .
• Question 2688: 1kg of copper is transferred quickly from boiling water to a block of ice. Calculate the mass of ice melted, neglecting heat loss. [specific heat capacity of copper 400Jkg^-1K^-1 and latent heat of fusion of ice 333 x 10³Jkg^-1] Options:
  A) 60g
  B) 67g
  C) 120g
  D) 133g
  Show Answer
  The correct answer is C .
• Question 2689:

  

  An object is positioned between two plane mirrors inclined at right angles to each other. The object is 1 unit from each mirror. The number of images formed is

  Options:
  A) 1
  B) 2
  C) 3
  D) 4
  E) 5
  Show Answer
  The correct answer is C .
• Question 2690: The activity of a radioactive substance depends on Options:
  A) temperature and purity
  B) temperature and age
  C) purity and age
  D) age, purity and temperature
  E) none of the above
  Show Answer
  The correct answer is E .