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 331: To determine the weight of an object you could Options:
  A) use a beam balance
  B) use a spring balance
  C) find the force necessary
  D) use none of these methods
  E) use any of these methods
  Show Answer
  The correct answer is E .
• Question 332: The amount of heat needed to raise the temperature of 10kg of copper by 1k is its Options:
  A) specific heat capacity
  B) heat capacity
  C) latent heat
  D) internal energy
  Show Answer
  The correct answer is B .
• Question 333: Which of the following statements is NOT correct? Options:
  A) A galvanometer can be converted to an ammeter with a different range by connecting a high resistance in series
  B) An electric current always produces a magnetic field
  C) Maxwell's screw rule states that if a corkscrew moves inthe direction of the current, the hand turns in the direction of the lines of force
  D) Electromagnets are used in electric bells and telephone recievers
  E) The lines of force round a straight current carrying conductor are circular
  Show Answer
  The correct answer is A .
• Question 334:

  

  In the diagram above, what would happen to the current I, if another resistor, R₂, is connected in parallel to R₁?

  Options:
  A) It will increase because the equivalent resistance will increase
  B) It will decrease if R₂ is greater than R₁
  C) It will increase because the effective resistance will decrease
  D) It will decrease if R₂ is less than R₁
  Show Answer
  The correct answer is C .
• Question 335: I. Refraction II. Interference III. Diffraction Which of the above properties are common to all waves? Options:
  A) II and III only
  B) I, II and III
  C) I and II only
  D) I and III only
  Show Answer
  The correct answer is B .
• Question 336:
  

  Two mirrors of the same length are arranged as shown in the diagram. A ray of light NO strikes the system at O and emerges along PQ. The emergent ray has been deviated through

  Options:
  A) 220${}^o$
  B) 200${}^o$
  C) 210${}^o$
  D) 180${}^o$
  Show Answer
  The correct answer is D .
• Question 337: The small droplets of water that form on the grass in the early hours of the morning is Options:
  A) Fog
  B) Haul
  C) Mist
  D) Dew
  Show Answer
  The correct answer is D .
• Question 338: Two similar kettles containing equal masses of boiling water are placed on a table. If the surface of one is highly polished and the surface of the other is covered with soot, Which of the following observations is correct Options:
  A) The two kettles will cool down at the same rate
  B) the polished kettle cools down more quickly by conduction
  C) the kettle covered with soot cools down more quickly because it is a good radiator
  D) the kettle covered with soot cools down more quickly by the process of heat convection
  Show Answer
  The correct answer is C .
• Question 339:

  A narrow beam of white light can be split up into different colours by a glass prism. The correct explanation is that

  Options:
  A) white light Is an electromagnetic wave
  B) the prism has all the colours of the white light
  C) different colours of white light travel with different speeds in glass
  D) white light has undergone total Internal reflection in the prism
  Show Answer
  The correct answer is C .
• Question 340: Electric charges on the surface of a conductor would be most evenly distributed if the shape of the conductor is Options:
  A) conical
  B) cubical
  C) cylindrical
  D) parabolic
  E) spherical
  Show Answer
  The correct answer is C .