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 341:

  Arrange the following in the order of their increasing frequency.I. Visible light

  II. Gamma rays

  III. Radio waves

  IV. Infra-red radiation

  V. Ultra-violet radiation

  Options:
  A) I, II, III, IV, V
  B) II, III, IV, V, I
  C) III, IV, V, I, II
  D) IV, III, I. V, II
  E) III, IV, I,V, II
  Show Answer
  The correct answer is E .
• Question 342: Electric charges on the surface of a conductor would be most evenly distributed if the shape of the conductor is Options:
  A) conical
  B) cubical
  C) cylindrical
  D) parabolic
  E) spherical
  Show Answer
  The correct answer is C .
• Question 343: Which of the following statements is correct? The magnetized state of an iron bar can be destroyed completely by Options:
  A) heating the bar to a high temperature
  B) breaking the bar
  C) connecting opposite poles with a small piece of iron
  D) placing the bar inside a strong magnetic field
  E) none of the above
  Show Answer
  The correct answer is A .
• Question 344: A member of the crew of a SPACESHIP experiences weightlessness in a space when they Options:
  A) Fall freely from the earth’s gravitational field
  B) Is walking on the planet
  C) In between the sun and the earth
  D) Holding anything in space is negative
  Show Answer
  The correct answer is A .
• Question 345: If a current carrying coil is mounted on a metal frame, the back e.m.f. induced in the coil causes Options:
  A) inductance
  B) eddy currents
  C) elecro-magnetism
  D) dipole moment
  Show Answer
  The correct answer is B .
• Question 346: When vibration occurs in air column, the distance between a node and an antinode is equal to Options:
  A) one-quarter of the wavelength
  B) one-hall of the wavelength
  C) the wave length
  D) twice the wavelength
  E) four-times the wavelength
  Show Answer
  The correct answer is A .
• Question 347:

  

  A 50kg block is dropped from a point 10cm above as shown in the fig above. if the force constant of the spring is 4.0 x 10⁴Nm^-1, find the maximum compression of the spring [g = 10ms^-2]

  Options:
  A) 1.25m
  B) 0.50m
  C) 0.25m
  D) 0.05m
  Show Answer
  The correct answer is B .
• Question 348: A calibrated potentiometer is used to measure the e.m.f. of a cell because the Options:
  A) internal resistance of a cell is small compared with that of the potentiometer
  B) potentiometer has a linear scale
  C) potentiometer takes no current from the cell
  D) resistance of the potentiometer is less than that of a voltmeter
  Show Answer
  The correct answer is C .
• Question 349: Which property of a fluid determines its suitability as a lubricant? Options:
  A) Capillarity
  B) Diffusion
  C) Solubility
  D) Surface tension
  E) Viscosity
  Show Answer
  The correct answer is E .
• Question 350: A stone of mass 0.7 kg is projected vertically upward with a speed of 5 ms-1. Calculate the maximum height reached. [g =10ms^-2] Options:
  A) 1.25m
  B) 1.50m
  C) 2.50m
  D) 3.75m
  E) 5.00Nm
  Show Answer
  The correct answer is A .