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 981: How can energy loss be minimized through Eddy-current? Options:
  A) By using high resistance wire
  B) By using insulated soft iron wires
  C) By using low resistance wires
  D) Bu using turns of wires
  Show Answer
  The correct answer is A .
• Question 982:

  The change in volume when 450kg of ice is completely melted is

  [density of ice = 900 kgm^-3, density of water = 100 kgm^-3]

  Options:
  A) 0.50m³
  B) 0.45m³
  C) 0.05m³
  D) 4.50m³
  Show Answer
  The correct answer is C .
• Question 983:

  For the correction of myopic defects in the human eye we require

  Options:
  A) a convex lens
  B) a concave lens
  C) a combination of concave and convex lenses
  D) a prism
  E) a concave mirror
  Show Answer
  The correct answer is B .
• Question 984: Which of the following statements is NOT correct? Options:
  A) Brownian motion is an evidence of the particle nature of matter
  B) Atoms combine to form molecules
  C) The molecules of matter are in constant motion
  D) matter is made up of molecules
  Show Answer
  The correct answer is C .
• Question 985: The rate of cooling of a heated quantity of liquid in an enclosure depends on the Options:
  A) Pressure of the liquid
  B) Temperature in the enclosure
  C) Pressure of the enclosure
  D) Volume of the liquid
  Show Answer
  The correct answer is B .
• Question 986:

  A man will exert the greatest pressurewhen he?

  Options:
  A) lies flat on his back
  B) lies on his belly
  C) stands on both feet
  D) stands on the toes of one foot
  Show Answer
  The correct answer is D .
• Question 987: Which of the following statements is correct about light and sound waves? Both Options:
  A) are longitudinal waves
  B) are transverse waves
  C) have the same velocity in air
  D) need a medium for propagation
  E) transmit energy
  Show Answer
  The correct answer is E .
• Question 988: If a mango fruit dropped at a height of 50 meters. How long does it reach the ground? (take g = 10m/s²) Options:
  A) 2 sec
  B) 3 sec
  C) 4sec
  D) 3.2sec
  Show Answer
  The correct answer is D .
• Question 989: An object which is 3cm high is placed vertically 10cm in front of a concave mirror. If this object produces an image 40cm from the mirror, the height of the image is Options:
  A) 0.75cm
  B) 4.00cm
  C) 8.00cm
  D) 12.00cm
  Show Answer
  The correct answer is D .
• Question 990: The total length of a spring when a mass of 20g is hung from its end is 14cm, while its total length is 16cm when a mass of 30g is hung from the same end. Calculate the unstretched length of the spring assuming Hooke's law is obeyed. Options:
  A) 9.33cm
  B) 10.00cm
  C) 10.66cm
  D) 12.00cm
  E) 15.00cm
  Show Answer
  The correct answer is B .