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 1121: 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 .
• Question 1122: A man 1.5m tall is standing 3m in front of a pinhole camera whose distance between the hole and the screen is 0.1m. What is the height of the image of the man on the screen? Options:
  A) 0.05m
  B) 0.15m
  C) 0.30m
  D) 1.00m
  Show Answer
  The correct answer is A .
• Question 1123: Calculate the heat energy lost when 10g of boiling water changes to ice at 0°C. [Specific latent heat of ice 336Jg^-1 . Specific heat capacity of water 4.2Jg^-1 K^-1] Options:
  A) 840J
  B) 3360J
  C) 3420J
  D) 4200J
  E) 7560J
  Show Answer
  The correct answer is E .
• Question 1124: Calculate the peak voltage that could be obtained from a 220 V${}_{r.m.s}$main supply. Options:
  A) 70.7V
  B) 110.0V
  C) 155.6V
  D) 311.1V
  E) 440.0V
  Show Answer
  The correct answer is D .
• Question 1125: a lead bullet of mass 0.05kg is fired with a velocity of 200ms^-1 into a lead block of mass 0.95kg. Given that the lead block can move freely, the final kinetic energy after impact is Options:
  A) 50 J
  B) 100 J
  C) 150 J
  D) 200 J
  Show Answer
  The correct answer is A .
• Question 1126: A person can focus an object only when it lies within 200cm from him. Which spectacles should be used to increase his maximum distance of distinct vision infinity Options:
  A) Convex lens
  B) Binoculars
  C) Concave lens
  D) Plane glasses
  Show Answer
  The correct answer is C .
• Question 1127: Heat transfer by convection in a liquid is due to the Options:
  A) Latent heat of vaporization of the liquid
  B) Increased vibration of the molecules of the liquid about theit mean position
  C) Variation of density of the liquid
  D) Expansion of the liquid as it is heated
  Show Answer
  The correct answer is D .
• Question 1128:

  When a sound wave passes from air into water its

  Options:
  A) speed and frequency increases but its wavelength remains the same
  B) speed and wavelength increases but its frequency remains the same
  C) speed decreases
  D) speed increases but its frequency and wavelength decreases
  Show Answer
  The correct answer is B .
• Question 1129: Determine the distance between the consecutive antinodes XX if the wavelength is 66cm Options:
  A) 15cm
  B) 30cm
  C) 60cm
  D) 120cm
  Show Answer
  The correct answer is B .
• Question 1130:

  A pool of water appears to be 1.00m deep when viewed vertically from above. What is the actual depth of the pool?

  [Refractive index of water = 1.33]

  Options:
  A) 13.300m
  B) 0.750m
  C) 1.013m
  D) 1.330m
  Show Answer
  The correct answer is D .