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 71: Which of the following devices are used to measure pressure? i. Aneroid barometer. ii. hydrometer. iii. hygrometer. iv. manometer. Options:
  A) i and iii
  B) ii and iii
  C) iii and iv
  D) i and iv
  Show Answer
  The correct answer is D .
• Question 72: A current carrying conductor experiences a force when placed in a magnetic field because the Options:
  A) conductor is magnetized
  B) magnetic field of the current interacts with external magnetic field
  C) force is due to the motor principle
  D) electric field of the current interacts with the external magnetic field
  Show Answer
  The correct answer is B .
• Question 73:
  

  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 74: A conductor has a diameter of 1.00 mm and length 2.00m. if the resistance of the material is 0.1Ω, its resistivity is? Options:
  A) 2.55 x 10⁵ Ωm
  B) 2.55 x 10² Ωm
  C) 3.93 x 10^-6 Ωm
  D) 3.93 x 10^-8 Ωm
  Show Answer
  The correct answer is D .
• Question 75:

  A bar magnet is divided into two pieces, which of the following statement is correct?

  Options:
  A) two new magnets are created
  B) the magnetic field of each separate piece becomes stronger
  C) the electric field is created
  D) the bar magnet is demagnetized
  Show Answer
  The correct answer is A .
• Question 76: The vibration of an air column produces the sound in the Options:
  A) piano
  B) guiter
  C) flute
  D) school handbell
  Show Answer
  The correct answer is C .
• Question 77: Which of the following is true of magnetism? Options:
  A) Iron fillings cling mainly round the ends of a bar magnet
  B) The freely suspended bar magnet comes to rest in the geographic north-south direction
  C) Like poles attract
  D) Iodestone is a non-magnetic oxide
  Show Answer
  The correct answer is B .
• Question 78:

  

  The diagram above represents the stress-strain graph of a loaded wire. Which of these statements is correct?

  Options:
  A) At J, the wire becomes plastic
  B) J is the yield point
  C) L is the elastic limit
  D) At K, the wire breaks
  Show Answer
  The correct answer is B .
• Question 79:

  The momentum of a car moving at a constant speed in a circular track

  Options:
  A) can be both positive and negative
  B) can be zero depending on its position in the track
  C) can be zero depending on its position in the track
  D) a centrifugal
  Show Answer
  The correct answer is C .
• Question 80: Light of velocity 3 x 10⁸ms^-1 is incident on a material of reflective of index n. If the velocity of light is reduced to 2.4 x 10⁸ms^-1 in the material, what is n? Options:
  A) 2.33
  B) 2.25
  C) 1.33
  D) 1.25
  Show Answer
  The correct answer is D .