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 1081: To protect a material from the influnce of an external magnetic field, the materials should be kept Options:
  A) square steel ring
  B) triangular zinc ring
  C) soft iron ring
  D) loop of copper wire
  Show Answer
  The correct answer is C .
• Question 1082: Which of the following statements about friction is NOT correct? Options:
  A) The force of kinetic friction is less than the force of static friction
  B) The force of kinetic friction between two surfaces is independent of the areas in contact provided the normal reaction is unchanged
  C) The force of rolling friction between two surfaces is less than the force of sliding friction
  D) The angle of friction is the angle between the normal reaction and the force of friction
  E) Friction may be reduced by lubriction
  Show Answer
  The correct answer is A .
• Question 1083: If a source of sound is moving, a stationary listener will hear a sound of different frequency. This is called Options:
  A) Doppler effect
  B) Resonance
  C) Ultra sound
  D) Diffraction of sound
  E) Rarefaction
  Show Answer
  The correct answer is A .
• Question 1084: Alternating current can induce voltage because it has a Options:
  A) ripple value
  B) varying magnetic field
  C) weaker magnetic field than direct current
  D) stonger magnetic field than direct current
  E) high peak value
  Show Answer
  The correct answer is D .
• Question 1085:

  The volume of a stone having an irregular shape can be determined using?

  Options:
  A) meter rule
  B) measuring cylinder
  C) vernier calliper
  D) micrometer screw gauge
  Show Answer
  The correct answer is B .
• Question 1086: The eye controls the amount of light reaching the retina by adjusting the Options:
  A) cornea
  B) iris
  C) retina
  D) optic nerve
  Show Answer
  The correct answer is B .
• Question 1087:

  An explosion occurs at an altitude of 312 m above the ground. If the air temperature is -10.00°C, how long does it take the sound to reach the ground?

  [velocity of sound at $0^{o}C$ = 331 ms-1]

  Options:
  A) 0.94s
  B) 0.96s
  C) 0.93s
  D) 0.95s
  Show Answer
  The correct answer is B .
• Question 1088: A 24V potential difference is applied across a parallel combination of four 6-ohms resistor, The current in each resistor is Options:
  A) 1A
  B) 4A
  C) 16A
  D) 18A
  E) 36A
  Show Answer
  The correct answer is B .
• Question 1089: A satellite moves in a circular orbit of radius 4R round the earth. The acceleration of the satellite in terms of g is Options:
  A) $\frac{g}{16}$
  B) $\frac{g}{4}$
  C) $\frac{4}{g}$
  D) $\frac{16}{g}$
  Show Answer
  The correct answer is A .
• Question 1090: An object is projected with a velocity of 50ms^-1 from ground level at an angle θ to the vertical. If the total time of flight of the projectile is 5s, what is the value of θ? (g = 10ms^-2) Options:
  A) 0°
  B) 30°
  C) 45°
  D) 60°
  E) 90°
  Show Answer
  The correct answer is B .