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:

  

  The figure above represents a frictionless pulley system in which a weight W is in equilibrium with a weight of 40N. Find the value of W.

  Options:
  A) 13.3N
  B) 20.0N
  C) 40.0N
  D) 80.0N
  Show Answer
  The correct answer is C .
• Question 542: In a compound microscope, the objective and the eye piece focal lengths are Options:
  A) At infinity
  B) Long
  C) Short
  D) The same
  Show Answer
  The correct answer is C .
• Question 543:

  An object is acted upon by a system of parallel three causing the object to be in state equilibrium. Which of the following statement is not correct

  Options:
  A) the resultant of the parallel forces is zero
  B) the algebraic sum of all the moments of the forces is zero
  C) all the parallel forces must be equal in magnitude and direction
  D) the sum of forces in one direction must be equal to the sum of forces in the opposite direction
  Show Answer
  The correct answer is C .
• Question 544: The image is a plane mirror is Options:
  A) inverted, real with a magnificant of $\frac{1}{2}$
  B) inverted, virtual with a magnification of 1
  C) inverted, real with a magnification of 2
  D) upright, virtual with a magnificent of 1
  E) upright, real with a magnification of 2
  Show Answer
  The correct answer is D .
• Question 545: A quantity of ice at 10^oC is heated until the temperature of the heating vessel is 90^oC. Which of the following constants is NOT required to determine the quantity of heat supplied to the vessel? Options:
  A) specific heat capacity of ice
  B) specific heat capacity of water
  C) specific latent heat of fusion
  D) specific latent heat of vaporization
  Show Answer
  The correct answer is D .
• Question 546:

  A hydrometer is an instrument formeasuring the

  Options:
  A) a depth of water of water in a vessel
  B) relative density of a liquid by the method of flotation
  C) relative density of a liquid by finding the apparent loss in weight
  D) relative humidity of the air
  Show Answer
  The correct answer is B .
• Question 547: 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 548: A short response to time is obtained in liquid-in-glass thermometer when the Options:
  A) bulb is large and thick-walled
  B) stem is long and thin
  C) bulb is small and thicked-walled
  D) liquid is of high density and the bore is large
  E) bulb is thin-walled and the liquid is a good conductor of heat
  Show Answer
  The correct answer is E .
• Question 549:

  The angular dispersion of a prism depends on

  Options:
  A) The index of refraction only
  B) The angle of incidence as well as the index of refraction
  C) The angle of incidence only
  D) The thickness of the prism only
  Show Answer
  The correct answer is A .
• Question 550: The resultant force of a couple is ………? Options:
  A) Infinity
  B) Zero
  C) One
  D) Half
  Show Answer
  The correct answer is B .