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 1: In a discharge tube, most of the gas is pumped out so that electricity is conducted at Options:
  A) low voltage
  B) steady voltage
  C) high pressure
  D) low pressure
  Show Answer
  The correct answer is D .
• Question 2: When a nucleus is formed by bringing protons and neutrons together, the actual mass of the formed nucleus is less than the sum of the masses of the energy equivalent of this mass difference is the Options:
  A) lost energy
  B) work function
  C) binding energy
  D) stability energy
  Show Answer
  The correct answer is C .
• Question 3: Calculate the position of an object placed in front of a convex mirror having focal length of 12 cm such that an image is formed 6 cm away from the mirror Options:
  A) 4. 0 cm
  B) 3. 0 cm
  C) 12.0 cm
  D) 9.0 cm
  Show Answer
  The correct answer is C .
• Question 4: For correcting long sight defects in the human eye we require a Options:
  A) converging lens
  B) diverging lens
  C) microscope
  D) periscope
  E) plain glass sheet
  Show Answer
  The correct answer is A .
• Question 5: Which of the following statements about sound is NOT true? Options:
  A) sound is a longitudinal wave
  B) sound can be reflected and refracted like light
  C) sound travels through a vacuum
  D) sound moves faster in a steel wire than in air
  E) sound can ony be produced by vibrating objects
  Show Answer
  The correct answer is C .
• Question 6: A radioactive source emits X–rays of very short wavelength (10 ^-13m ) what is the frequently of these rays? Options:
  A) 2 × 10¹⁸HZ
  B) 3 × 10 ¹⁹HZ
  C) 3 × 10²¹HZ
  D) 3 × 10^-19HZ
  Show Answer
  The correct answer is C .
• Question 7: A liquid-in-glass thermometer should quickly register temperature changes. This is achieved by choosing a liquid that Options:
  A) is opaque
  B) has high density
  C) has regular expansion
  D) has a high thermal conductivity
  E) can wet glass
  Show Answer
  The correct answer is D .
• Question 8: An empty density bottle weighs 2 N. if its weighs 5 N when filled with water and 4 N when filled with olive oil, the relative density of olive oil is Options:
  A) (1)/3
  B) (2)/3
  C) (1)/5
  D) (2)/5
  Show Answer
  The correct answer is B .
• Question 9:

  Tha mass of a proton is approximately equal to that of

  Options:
  A) an $\alpha$-particle
  B) a $\beta$-Particle
  C) a neutron
  D) an electron
  Show Answer
  The correct answer is C .
• Question 10: Which of the following statements is correct? Silvered walls of a vacuum flask are used to prevent Options:
  A) heat loss due to conduction
  B) vacuum loss
  C) heat entry into the inner flask due to convection
  D) heat loss due to radiation
  E) heat loss due to convection
  Show Answer
  The correct answer is D .