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 1141: A projection lantern is used to give the image of a slide on a screen. If the image is 24 times as large as the slide and the screen is 72.0m from the projecting lens, what is the position of the slide from the lens? Options:
  A) 0.3m
  B) 3.0m
  C) 3.5m
  D) 4.0m
  Show Answer
  The correct answer is B .
• Question 1142: How much heat is required to convert 50g of water at 100°C to steam at the same temperature? (Specific latent heat of vaporization of water = 2260 Jg^-11) Options:
  A) 1.13 × 10^-4J
  B) 1.31 × 10²J
  C) 1.30 × 10⁴J
  D) 1.13 × 10⁵J
  E) 1.31 × 10⁶J
  Show Answer
  The correct answer is D .
• Question 1143: Satellite communication network makes use of? Options:
  A) visible light
  B) sound wave
  C) radio wave
  D) infra-red wave
  Show Answer
  The correct answer is C .
• Question 1144: Food cook quicker in salt water than in pure water because of the effect of Options:
  A) dissolved substances on the boiling point
  B) atmospheric pressure on the boiling point
  C) food nutrients on the thermal energy
  D) salts on the thermal conductivity of water
  Show Answer
  The correct answer is A .
• Question 1145:

  A lorry accelerates uniformly in a straight line with acceleration of $4m{s}^{-}2$ and covers a distance of 250 m in a time interval of 10 s. How far will it travel in the next 10 s?

  Options:
  A) 650
  B) 900
  C) 800
  D) 250
  Show Answer
  The correct answer is A .
• Question 1146: 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 1147: The percentage of the original nuclei of the sample of a radioactive substance left after 5 half - lives is Options:
  A) 8%
  B) 5%
  C) 3%
  D) 1%
  Show Answer
  The correct answer is C .
• Question 1148: One of the properties of gamma rays is that they are? Options:
  A) neutral
  B) massive
  C) positively charged
  D) negatively charged
  Show Answer
  The correct answer is A .
• Question 1149: The eclipse of the sun occurs when the Options:
  A) moon is between the sun and the earth
  B) earth is between the sun and the moon
  C) moon is not completely hidden in the earth's shadow
  D) moon's umbra falls on some part of the earth
  Show Answer
  The correct answer is A .
• Question 1150: Which of the following pairs of musical instruments produce sound due to the vibration of air column? Options:
  A) Bell and piano
  B) Guitar and flute
  C) Trumpet and drum
  D) Trumpet and flute
  E) Violin and organ
  Show Answer
  The correct answer is D .