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: An astronomical telescope is said to be in normal adjustment when the Options:
  A) eye is accommodated
  B) focal length of objective lens is longer than that of eye piece
  C) final image is at the near point of eye
  D) final image is at infinity
  Show Answer
  The correct answer is D .
• Question 2: 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 3: Thermal equilibrium between two object exist when Options:
  A) the temperature of both objects are equal
  B) the quantity of heat of both objects is the same
  C) the heat capacities of both objects are the same
  D) one object losses heat continuously to the other
  Show Answer
  The correct answer is A .
• Question 4: The cost of running five 60 W lamps and four 100 W lamps for 20 hours if electrical energy cost #10.00 per kwh is Options:
  A) 280.00
  B) 160.00
  C) 120.00
  D) 140.00
  Show Answer
  The correct answer is D .
• Question 5: The amplitude of oscillation of a simple pendulum bob diminishes slowly because Options:
  A) energy is applied by some external agencies
  B) frictional forces dissipate the energy of motion
  C) the frequency of oscillation increases with the mass of the bob
  D) the frequency of oscillation varies with time
  E) the period of oscillation varies with time.
  Show Answer
  The correct answer is A .
• Question 6:

  0.5kg of water at 10ºC is completely converted to ice at 0ºC by extracting (88000) of heat from it. If the specific heat capacity of water is 4200jkg${}^1$ Cº. Calculate the specific latent heat of fusion of ice.

  Options:
  A) 9.0kjkg${}^{-1}$
  B) 84.0kjkg${}^{-1}$
  C) 134.0kjkg${}^{-1}$
  D) 168.0kjkg${}^{-1}$
  Show Answer
  The correct answer is C .
• Question 7: What is the speed of a body vibrating at 50 cyclic per second Options:
  A) 100 πrads${}^{-1}$
  B) 200 πrads${}^{-1}$
  C) 50 πrads${}^{-1}$
  D) 400 πrads${}^{-1}$
  Show Answer
  The correct answer is A .
• Question 8:

  

  If a ray traveling in air is incident on a transparent medium as shown in the diagram, the refractive index of the medium is given as

  Options:
  A) $\frac{\cos \beta }{\sin \alpha }$
  B) $\frac{\cos \alpha }{\sin \beta }$
  C) $\frac{\sin \alpha }{\sin \beta }$
  D) $\frac{\sin \beta }{\sin \alpha }$
  Show Answer
  The correct answer is B .
• Question 9: A series RLC circuit is said to resonate, when Options:
  A) capacitive reactance is zero
  B) conductance is maximum
  C) current is minimum
  D) impedance is minimum
  E) inductive reactance is zero
  Show Answer
  The correct answer is D .
• Question 10: A car accelerate uniformly from rest at 4 ms^-2. How far will it travel in the fifth complete second? Options:
  A) 100 m
  B) 50m
  C) 32 m
  D) 18 m
  Show Answer
  The correct answer is D .