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 91:

  One of the following is a scalar quantity?

  Options:
  A) weight
  B) momentum
  C) potential energy
  D) displacement
  Show Answer
  The correct answer is C .
• Question 92:

  One newton × One meter equals?

  Options:
  A) One water
  B) One Joule
  C) One ampere
  D) One kilogram
  Show Answer
  The correct answer is B .
• Question 93:

  

  The value of F in the figure above when in equilibrium is

  Options:
  A) 10N
  B) 12N
  C) 20N
  D) 27N
  Show Answer
  The correct answer is C .
• Question 94: 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 95: Two 2.0Ω resistors can be combined circuit to give an overall resistance of Options:
  A) 0.5Ω only
  B) 1.0 Ω only
  C) either 0,5Ω or 1.0 Ω
  D) either 1.0Ω or 4.0 Ω
  E) either 0.5Ω, 1.0Ω or 4.0Ω
  Show Answer
  The correct answer is D .
• Question 96: An electron makes a transition from - 1.60 eV energy level to - 10.4eV energy level Calculate the energy loss due to the transition. Options:
  A) 16.64eV
  B) 12.00eV
  C) 10.40eV
  D) 8.80eV
  E) 6.50eV
  Show Answer
  The correct answer is D .
• Question 97: A ray of light makes an angle of 35^o with a plane mirror. What is the angle of reflection? Options:
  A) 35^o
  B) 55^o
  C) 70^o
  D) 65^o
  Show Answer
  The correct answer is B .
• Question 98: In a hydraulic press, the pump piston exerts a pressure of 100 pa on the liquid. what force is exerted in the second piston of cross sectional area 3 m²? Options:
  A) 300 N
  B) 200 N
  C) 150 N
  D) 100 N
  Show Answer
  The correct answer is A .
• Question 99: 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 weathers. iii. light from the sky can be reflected upwards after coming close to the road surface. Options:
  A) ii only
  B) ii and iii only
  C) i and iii only
  D) i, ii, and iii only
  Show Answer
  The correct answer is C .
• Question 100: Which of the following statements correctly describe(s) cathode rays? i. they consist of tiny particles carrying negative electric charges. ii. they are deflected in a magnetic field but not in an electric field. iii. they consist of fast moving neutrons and deflected in an electric field. Options:
  A) i only
  B) ii only
  C) i and ii only
  D) ii and iii only
  Show Answer
  The correct answer is A .