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 11: A radio station broadcast at a frequency of 600KHZ. If the speed of light in air is 3 × 108ms${}^{-1}$. Calculate the wavelength of the radio wave Options:
  A) 2.20 × 10${}^3$m
  B) 5.0 × 10${}^2$m
  C) 5.0 × 10${}^5$m
  D) 11.8 × 10${}^{11}$m
  Show Answer
  The correct answer is B .
• Question 12: Which of the following statements is NOT correct? Options:
  A) Molecules of a liquid are stationary
  B) Brownian motion is an evidence of particle nature of matter
  C) Matter is made up of molecules
  D) The molecules of matter are in constant motion
  Show Answer
  The correct answer is A .
• Question 13:

  Which of the following may be used to explain a mirage?

  I. Layers of air near the road surface have varying refractive indices in hot weather

  II. Road surfaces sometimes become good reflectors in hot weather

  III. Light from the sky can be reflected upwards after coming close to the road surface.

  Options:
  A) I and III only
  B) II and III only
  C) II only
  D) I, II and III
  Show Answer
  The correct answer is A .
• Question 14:

  Totally reflecting prisms are preferred to mirrors in periscopes becauseI. mirror givegive multiple images

  II. silvering on mirrors is easy damaged

  III. mirrors reflect less light than totally reflecting prisms

  Options:
  A) I only
  B) I and II only
  C) I and III only
  D) II and III only
  E) I,II and III
  Show Answer
  The correct answer is D .
• Question 15: As the pressure of a fluid increases, its viscosity Options:
  A) decreases
  B) increases
  C) increases then decreases
  D) remains constant
  Show Answer
  The correct answer is B .
• Question 16: An object is placed directly below a glass block of thickness 3.0cm. Calculate the lateral displacement of the object if the refractive index of the glass is 1.5. Options:
  A) 1.0cm
  B) 1.5cm
  C) 2.0cm
  D) 2.5cm
  Show Answer
  The correct answer is A .
• Question 17:

  I. Low pressure.
  II. High pressure.
  III. High p.d.
  IV. Low p.d.

  Which combination of the above is true of the conduction of electricity through gases?

  Options:
  A) I and IV only
  B) I and III only
  C) II and IV only
  D) II and III only
  Show Answer
  The correct answer is B .
• Question 18: Which of the following conditions are necessary and sufficient for total internal reflection to take place at the boundary between two optical media? i. light is passing from optically denser medium to optically less dense medium. ii. light is passing from optically less dense medium to optically denser medium. iii. angle of incidence is greater. iv. angle of incidence is lesser Options:
  A) i and ii only
  B) ii and iii only
  C) ii and iv only
  D) i and iii only
  E) ii and iv only
  Show Answer
  The correct answer is D .
• Question 19:

  A concave mirror of radius of curvature 40 cm forms a real image twice as large as the object.

  The object distance is

  Options:
  A) 10 cm
  B) 30 cm
  C) 40 cm
  D) 60 cm
  Show Answer
  The correct answer is B .
• Question 20: The amount of heat required to raise the temperature of a body is Options:
  A) Thermal energy
  B) thermal conduction
  C) heat loss
  D) specific heat capacity
  E) thermal capacity
  Show Answer
  The correct answer is E .