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 2051:

  Radio waves belongs to the class of ware whose velocity is about

  Options:
  A) 340m/s
  B) 3 × 10${}^6$ m/s
  C) 3 × 10${}^8$ m/s
  D) 3 × 10${}^{-8}$ m/s
  Show Answer
  The correct answer is C .
• Question 2052: An object is placed at 5.6 x 10^-4m in front of a converging lens of focal length 1.0 x 10^-nm. The image formed is Options:
  A) Real, Erect and magnified
  B) Virtual, erect and magnified
  C) Real, inverted and magnified
  D) Virtual, erect and diminished
  Show Answer
  The correct answer is C .
• Question 2053: When an alternating current given by I = 10sin (120π)t passes through a 12Ω resistor, the power dissipated in the resistor is Options:
  A) 1200W
  B) 600W
  C) 120W
  D) 30W
  Show Answer
  The correct answer is A .
• Question 2054: Which of the following surfaces will absorbs radiant heat energy heat? Options:
  A) white
  B) red
  C) black
  D) blue
  Show Answer
  The correct answer is C .
• Question 2055:

  The volume of 0.354g of helium at 273°C and 114cm of mercury pressure is 2667cm${}^3$. Calculate the volume

  Options:
  A) 2000.25 cm${}^3$
  B) 200.025 cm${}^3$
  C) 4003.27 cm${}^3$
  D) 2010.25 cm${}^3$
  Show Answer
  The correct answer is B .
• Question 2056: A body rolls down a slope from a height of 100m. its velocity at the foot of the slope is 20ms^-1. What percentage of its initial potential energy is converted into kinetic energy? [g = 10ms^-1] Options:
  A) 40%
  B) 35%
  C) 20%
  D) 15%
  Show Answer
  The correct answer is C .
• Question 2057:

  

  The total capacitance of the circuit above is

  Options:
  A) 0.25mF
  B) 0.50mF
  C) 0.75mF
  D) 1.25mF
  E) 1.50mF
  Show Answer
  The correct answer is E .
• Question 2058:

  If a body moves with a constant speed and at the same time undergoes an acceleration, its motion is said to be

  Options:
  A) oscillation
  B) circular
  C) rotational
  D) rectilinear
  Show Answer
  The correct answer is B .
• Question 2059: The hatch door of a submarine has an area of 0.5m². The specific gravity of sea water is 1.03. Assume that g = 10ms^-1,and neglect the atmospheric pressure. The force exerted by the sea water on the hatch door at a depth of 200m is Options:
  A) 1.03 x 10⁵N
  B) 1.03 x 10⁴Nm^-2
  C) 1.06 x 10⁵Nm^-2
  D) 2.06 x 10⁶N
  E) 1.03 x 10³N
  Show Answer
  The correct answer is E .
• Question 2060:

  The working of the beam balance is based on the principle of

  Options:
  A) moments
  B) conservation of energy
  C) equivalence
  D) floatation
  Show Answer
  The correct answer is A .