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 1351: A quantity of gas occupies a certain volume when the temperature is -73^oC and the pressure is 1.5 atmospheres. If the pressure is increased to 4.5 atmospheres and the volume is halved at the same time, what will be the new temperature of the gas? Options:
  A) 573^oC
  B) 327^oC
  C) 300^oC
  D) 110^oC
  E) 27^oC
  Show Answer
  The correct answer is E .
• Question 1352: The relative density of dilute tetraoxosulphate (vi) acid in a battery is measured with a Options:
  A) barometer
  B) hydrometer
  C) manometer
  D) hypsometer
  Show Answer
  The correct answer is B .
• Question 1353: Which of the following is a percussion instrument? Options:
  A) Flute
  B) Organ
  C) Bell
  D) Piano
  E) Sonometer
  Show Answer
  The correct answer is C .
• Question 1354: Dispersion occurs when white light passes through a glass prism because of the Options:
  A) different hidden colours in the glass
  B) different speeds of the colour in the glass
  C) defects in the glass
  D) high density of the glass
  Show Answer
  The correct answer is B .
• Question 1355: Calculate the work done in charging a capacitor of capacitance 20µF through a potential difference of 1000V. Options:
  A) 0.02 J
  B) 0.10 J
  C) 0.20 J
  D) 1.00 J
  E) 10.00 J
  Show Answer
  The correct answer is E .
• Question 1356: A plane inclined at an angle of 30^o to the horizontal has an efficiency of 60%. The force parallel to the plane required to push a load of 120N uniformly up the plane is Options:
  A) 60N
  B) 100N
  C) 120N
  D) 200N
  E) 240N
  Show Answer
  The correct answer is B .
• Question 1357: The point beyond which a stretched spring does not return to its original length is called the Options:
  A) breaking point
  B) elastic limit
  C) spring constant
  D) elasticity point
  E) release point
  Show Answer
  The correct answer is B .
• Question 1358: In homes, electrical appliances and lamps are connected in parallel because Options:
  A) Parallel connections do not heat up the wires
  B) series connections use high voltage
  C) less current will be used
  D) less voltage will be used
  Show Answer
  The correct answer is C .
• Question 1359: A boy observes a piece of stone at the bottom of a river 6.0m deep. If he looks from the surface of the river, what is the apparent distance of the stone from him? [Refractive Index of Water = 4/3] Options:
  A) 8.0m
  B) 5.5m
  C) 5.0m
  D) 4.5m
  Show Answer
  The correct answer is D .
• Question 1360:

  A given mass of gas has a pressure of 80 Nm${}^{-2}$ at a temperature of 47 C. If the temperature is reduced to 27 C with volume remaining constant, the new pressure is?

  Options:
  A) 46.0 Nm${}^{-2}$
  B) 75.0 Nm${}^{-2}$
  C) 80.0 Nm${}^{-2}$
  D) 85.3 Nm${}^{-2}$
  Show Answer
  The correct answer is B .