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 101:

  

  In the diagram above a beam of white light travels from a rare to a dense medium. What colours of light do the rays a, b and c respectively represents?

  Options:
  A) red, green and blue
  B) Green, red and blue
  C) Yellow , blue and red
  D) Blue , yellow and red
  Show Answer
  The correct answer is A .
• Question 102: A magnet is similar to a bipolar charged system in that Options:
  A) it consists of two opposite poles - the north and south poles
  B) the earth's magnetic field has a south pole near the geographical north pole and a north pole near the geographical south pole
  C) the force of attraction and repulsion between opposite and between like poles obeys a law for electrostatic charges
  D) A and B only
  E) A and C only
  Show Answer
  The correct answer is E .
• Question 103:

  The pitch of an acoustic device can be increased by

  Options:
  A) decreasing the loudness
  B) increasing the intensity
  C) increasing the frequency
  D) decreasing the intensity
  Show Answer
  The correct answer is C .
• Question 104: If a charged ion goes through combined electric and magnetic fields, the resultant emergent velocity of the ion is Options:
  A) E/B
  B) EB
  C) B/E
  D) E - B
  Show Answer
  The correct answer is A .
• Question 105: A transformer has a primary coil with 500 turns and a secondary coil with 2500 turns. When the voltage input to the primary coil is 120V, the output is Options:
  A) 6000V
  B) 600V
  C) 240V
  D) 60V
  E) 24V
  Show Answer
  The correct answer is B .
• Question 106: Which of the following has the lowest internal resistance when new? Options:
  A) leclanche cell
  B) Daniel cell
  C) Accumulator
  D) Torch battery
  Show Answer
  The correct answer is C .
• Question 107:

  In what range oftemperature is the expansion of water anomalous?

  Options:
  A) +208${}^o$C to +212${}^o$C
  B) -80${}^o$C + -76${}^o$C
  C) 0${}^o$C to +4${}^o$C
  D) -4${}^o$C to +0${}^o$C
  Show Answer
  The correct answer is C .
• Question 108:
  

  The diagram above illustrates the penetrating power of some types of radiation. X, Y and Z are likely

  Options:
  A) X = α-particle; Y = γ-ray; Z = β-particle
  B) X = α-particle; Y = β-particle; Z = γ-ray
  C) X = γ-ray; Y = α-particle; Z = β-particle
  D) X = β-particle; Y = γ-ray; Z = α-particle
  Show Answer
  The correct answer is C .
• Question 109:

  According to kinetic molecular model, in gases

  Options:
  A) The particles are closely packed together, they occupy minimum space and are usually arranged in a regular pattern
  B) The particles occur in clusters with molecules slightly farther apart
  C) The molecule are very fast apart and occupy all the space made available
  D) The particle vibrate about fixed positions and are held together by the strong intermolecular bonds between them
  Show Answer
  The correct answer is C .
• Question 110:

  A semiconductor is formed by?

  Options:
  A) co-ordinate bonds
  B) electrovalent bonds
  C) a substance free of bonds
  D) covalent bonds
  Show Answer
  The correct answer is D .