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 541:

  Convex mirrors are used as driving mirrors because images formed are

  Options:
  A) erect, Virtual and diminished
  B) erect, real and diminished
  C) erect, virtual and magnified
  D) inverted, virtual and diminished
  Show Answer
  The correct answer is A .
• Question 542: For a best result using temperature to achieve an accurate measurement, it is best to use Options:
  A) Mercury thermometer
  B) gas thermometer
  C) clinical thermometer
  D) alcohol thermometer
  Show Answer
  The correct answer is B .
• Question 543: In a nuclear fusion process, four protons each of mass M_p were fused to produce a nucleus X of mass M_x. Which of the following equations is CORRECT? Options:
  A) 4M_p > M_x
  B) 4M_p = M_x
  C) 4M_p< M_x
  D) M_p > M_x
  Show Answer
  The correct answer is B .
• Question 544: 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 545: A force F required to keep a 5 kg mass moving round a cycle of radius 3.5 m at a speed of 7 ms^-1. What is the speed, if the force is tripled? Options:
  A) 4.0 ms^-1
  B) 6.6 ms^-1
  C) 12.1 ms^-1
  D) 21.0 ms^-1
  Show Answer
  The correct answer is C .
• Question 546: A string of length 4m is extended by 0.02m when a load of 0.4kg is suspended at its end. What will be the length of the string when the applied force is 15N? Options:
  A) 4.05m
  B) 4.08m
  C) 5.05m
  D) 6.08m
  Show Answer
  The correct answer is B .
• Question 547: The temperature at which the water vapour present in the air is just enough to saturate the air is the _______ point. Options:
  A) boiling
  B) critical
  C) dew
  D) ice
  E) steam
  Show Answer
  The correct answer is C .
• Question 548: Which of the following types of motion is/are exhibited by a cylindrical drum rolling down an incline plane? Options:
  A) Random and rotational
  B) Rotational and oscillatory
  C) Rotational only
  D) Translations only
  E) Translational and rotational
  Show Answer
  The correct answer is E .
• Question 549: When an atom undergoes a beta decay, the atomic number of the nucleus Options:
  A) Remains unchanged
  B) Decreases by one
  C) Increases by one
  D) Becomes zero
  Show Answer
  The correct answer is C .
• Question 550:

  A man walks 1km due east and then 1 km due north. His displacement is

  Options:
  A) √2km N 45°E
  B) 1km N 30°E
  C) 1km N 15°E
  D) √2km N 60°E
  Show Answer
  The correct answer is A .