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 1631: Water does not drop through an open umbrella of silk materials unless the inside of the umbrella is touched. This is due to Options:
  A) capilarity
  B) osmotic pressure
  C) viscosity
  D) surface tension
  Show Answer
  The correct answer is D .
• Question 1632:

  A cone is in unstable equilibrium has its potential energy

  Options:
  A) decreased
  B) increased
  C) unchanged
  D) oscillating
  Show Answer
  The correct answer is A .
• Question 1633: Which material is best for making a permanent magnet? Options:
  A) aluminium
  B) cobalt
  C) copper
  D) soft iron
  E) steel
  Show Answer
  The correct answer is E .
• Question 1634: Which of the following electromagnetic waves has the highest frequency? Options:
  A) utra - violet rays
  B) radio waves
  C) x - rays
  D) infrared - rays
  Show Answer
  The correct answer is C .
• Question 1635:

  Water and Kerosine are drawn respectively into the two limbs of a Hare's apparatus. The destiny of water is 1.0gcm${}^{-3}$ and the density of kerosine is 0.80gcm${}^{-3}$. If the height of the water column is 20.0cm, calculate the height of the kerosine column.

  Options:
  A) 1.6cm
  B) 16.0cm
  C) 20.0cm
  D) 25.0cm
  Show Answer
  The correct answer is D .
• Question 1636: The specific heat of a substance in the solid state is C₁; its specific beat in the liquid state is C₂ and its latent heat of fusion is L. If a mass M of the substance is changed from the solid state at temperature T, to the liquid state, also at temperature T, the amount of heat required will be Options:
  A) M(C₁ ÷ C₂) x T
  B) ML
  C) L
  D) M(C₁ + C₂) × T ÷ ML
  E) ML(C₁ + C₂ ÷ 2) × T
  Show Answer
  The correct answer is B .
• Question 1637:

  Which of the statements is/are true of two bodies involved in an inelastic collision? After collision. I. the kinetic energy increases

  II. The momentum decreases

  III. Their velocities are the same.

  Options:
  A) I only
  B) II Only
  C) III only
  D) I and II only
  E) II and III only
  Show Answer
  The correct answer is C .
• Question 1638: 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 1639:

  "Sum of all forces acting on a body is zero." This condition represents equilibrium'

  Options:
  A) First condition
  B) Second condition
  C) Third condition
  D) Fourth condition
  Show Answer
  The correct answer is A .
• Question 1640: Which of the following pairs of musical instruments produce sound due to the vibration of air column? Options:
  A) Bell and piano
  B) Guitar and flute
  C) Trumpet and drum
  D) Trumpet and flute
  E) Violin and organ
  Show Answer
  The correct answer is D .