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 641: The production and type of charge of a body can only be accounted for by the? Options:
  A) deficiency or surplus of electrons
  B) equibrium in protons and neutrons
  C) deficiency or surplus of protrons
  D) deficiency or surplus of neutrons
  Show Answer
  The correct answer is A .
• Question 642: The difference between sound waves and light waves is that sound waves Options:
  A) are transverse while light waves are longitudinal
  B) require a medium to travel while light waves does not
  C) can be diffracted but light waves cannot
  D) cannot be reflected but light waves can
  Show Answer
  The correct answer is B .
• Question 643: In 90 seconds, the mass of a radioactive element reduces to $\frac{1}{16}$ of its original value. Determine the half- life of the element. Options:
  A) 15.0s
  B) 18.0s
  C) 22.5s
  D) 30.0s
  E) 45.0s
  Show Answer
  The correct answer is C .
• Question 644: Which of the following pairs of musical instruments produce sound due to the vibration of air column? Options:
  A) Bell and piano
  B) Guitar and flute
  C) Trumpet and drum
  D) Trumpet and flute
  E) Violin and organ
  Show Answer
  The correct answer is D .
• Question 645: A particle moves in a circular orbit of radius 0.02m. If the speed of the particle is 0.88ms^-1, calculate its frequency in cycles per second Options:
  A) 2.0Hz
  B) 7.0Hz
  C) 8.8Hz
  D) 14.0Hz
  E) 17.6Hz
  Show Answer
  The correct answer is B .
• Question 646:

  

  In the AC circuit diagram above, the resonance frequency is

  Options:
  A) 5000π Hz
  B) 2500π Hz
  C) 5000/π Hz
  D) 2500/π Hz
  Show Answer
  The correct answer is D .
• Question 647: The lowest note emitted by a stretched string has a frequency of 40Hz. How many overtones are there between 40Hz and 150Hz? Options:
  A) 1
  B) 2
  C) 3
  D) 4
  Show Answer
  The correct answer is A .
• Question 648: The accurate measurement of the relative density of substances in powder or granular form can be done using a beam balance and a Options:
  A) pipette
  B) burette
  C) measuring cylinder
  D) density
  E) bottle
  Show Answer
  The correct answer is E .
• Question 649: Which type of radiation does not NOT originate within the nucleus? Options:
  A) alpha
  B) beta
  C) gamma
  D) neutron
  E) x-rays
  Show Answer
  The correct answer is E .
• Question 650:

  

  If current flows in the direction of the arrows in the solenoid above, the north pole is at

  Options:
  A) P
  B) Y
  C) X
  D) Q
  Show Answer
  The correct answer is D .