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:

  When the temperature of a liquid increases,its surface tension

  Options:
  A) decreases
  B) increases
  C) remains constant
  D) increases then decreases
  Show Answer
  The correct answer is A .
• Question 1192: What is the effect of the increase in the size of the hole of a pin-hole camera on the image? it Options:
  A) gives a blurred image
  B) corrects for chromatic aberration
  C) magnifies the image
  D) brings the image into a sharper focus
  Show Answer
  The correct answer is A .
• Question 1193: A ball of mass 0.1kg is thrown vertically upwards with a speed of 10ms^-1 from the top of a tower 10m high. Neglecting air resistance, its total energy just before hitting the ground is(take g = 10ms^-2) Options:
  A) 5 J
  B) 10 J
  C) 15 J
  D) 20 J
  Show Answer
  The correct answer is C .
• Question 1194:

  Which of the following types of electromagnetic waves is used in night vision goggles?

  Options:
  A) Microwaves
  B) Ultraviolet waves
  C) Infrared waves
  D) Radio waves
  Show Answer
  The correct answer is C .
• Question 1195: A load of 5N gives an extension of 0.56cm in a wire which obeys Hooke's law. What is the extension caused by a load of 20N? Options:
  A) 1.12cm
  B) 2.14cm
  C) 2.24cm
  D) 2.52cm
  Show Answer
  The correct answer is C .
• Question 1196: A body is projected from the earth's surface with the intention of letting it escape from the earth's gravitational field. What is the minimum escape velocity of the body? [Earth's radius = 6.4 x 10³km, g = 10ms^-2] Options:
  A) 14 kms^-1
  B) 13 kms^-1
  C) 12 kms^-1
  D) 11 kms^-1
  Show Answer
  The correct answer is D .
• Question 1197: Which of the following statements is correct about light and sound waves? Both Options:
  A) are longitudinal waves
  B) are transverse waves
  C) have the same velocity in air
  D) need a medium for propagation
  E) transmit energy
  Show Answer
  The correct answer is E .
• Question 1198: Given the same amount of beat, a quantity of water will reach a higher temperature in a brass pot than in a clay pot of the same mass because Options:
  A) brass is less dense than clay
  B) clay expands more slowly than brass
  C) clay loses heat faster than brass
  D) the specific heat capacity of brass is higher than that of clay
  E) the specific heat capacity of brass is lower than of clay.
  Show Answer
  The correct answer is E .
• Question 1199:

  Arrange the following in the order of their increasing frequency.I. Visible light

  II. Gamma rays

  III. Radio waves

  IV. Infra-red radiation

  V. Ultra-violet radiation

  Options:
  A) I, II, III, IV, V
  B) II, III, IV, V, I
  C) III, IV, V, I, II
  D) IV, III, I. V, II
  E) III, IV, I,V, II
  Show Answer
  The correct answer is E .
• Question 1200:

  

  The diagram above represents the field pattern obtained by bringing the poles of two magnets together.The poles must be

  Options:
  A) S-S poles
  B) S-N poles
  C) N-S poles
  D) N-N poles
  Show Answer
  The correct answer is A .