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 1191: A man standing between two parallel mirrors in a barber's shop will see the following number of his own image Options:
  A) eight
  B) two
  C) four
  D) one
  E) infinite
  Show Answer
  The correct answer is E .
• Question 1192: A body executing simple harmonic motion has an angular speed of 2π radians. Its period of oscillation is (π 3.14). Options:
  A) 0.05s
  B) 1.00s
  C) 2.00s
  D) 3.14s
  E) 6.28s
  Show Answer
  The correct answer is B .
• Question 1193:

  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 1194: At different locations on the earth's surface, the earth's magnetic field is Options:
  A) the same in magnitude and direction
  B) the same in magnitude but different in direction
  C) different in both magnitude and direction
  D) different in magnitude but different in direction
  Show Answer
  The correct answer is A .
• Question 1195: Calculate the work done in charging a capacitor of capacitance 20µF through a potential difference of 1000V. Options:
  A) 0.02 J
  B) 0.10 J
  C) 0.20 J
  D) 1.00 J
  E) 10.00 J
  Show Answer
  The correct answer is E .
• Question 1196: A band of 500 rectangular loops of wire of area 20 cm by 20 cm, encloses a region of magnetic field which charges from 1.0T to 0.4T within 5 seconds, calculate the induced e.m.f. Options:
  A) 5.60 v
  B) 24.00 v
  C) 0.24 v
  D) 2.40 v
  Show Answer
  The correct answer is D .
• Question 1197: A transformer has an efficiency of 92.5%. the ratio number of turns in the primary coil to that in the secondary coil is 128 : 45. If the current passing through the secondary coil is 9.0A, calculate the current passing through the primary-coil. Options:
  A) 2.93A
  B) 3.16A
  C) 3.42A
  D) 25.60A
  E) 27.68A
  Show Answer
  The correct answer is C .
• Question 1198:

  

  Which of the following figures gives the correct resultant R of two vectors P and Q?

  Options:
  A) I
  B) II
  C) III
  D) IV
  E) V
  Show Answer
  The correct answer is D .
• Question 1199: Which of the following statements is CORRECT about the earth's magnetic field? Options:
  A) the angle of dip is the angle which a freely suspended magnet makes with the vertical
  B) the angle of declination is the angle between the magnetic meridian and the geographic meridian
  C) the angle of declination is the angle which a magnetic compass makes with the magnetic meridian
  D) the angle of inclination is the difference between the angle of dip and the angle of declination
  Show Answer
  The correct answer is B .
• Question 1200: If the distance between the object and the pinhole of a pinhole camera is reduced by half the size of the image of the object Options:
  A) Is quadrupled
  B) Is halved
  C) Remains the same
  D) Is double
  Show Answer
  The correct answer is D .