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 1061: A man exerts a pressure of 2.8 x 10³Nm^-2 on the ground and has 4 x 10^-2m² of his feet in contact with the ground. The weight of the man is Options:
  A) 102N
  B) 70N
  C) 140N
  D) 112N
  Show Answer
  The correct answer is D .
• Question 1062: What type of electromagnetic radiation can be used to take photographs in the haze? Options:
  A) Radio waves
  B) infrared rays
  C) Visible light
  D) Gamma rays
  Show Answer
  The correct answer is B .
• Question 1063: A body of mass 5kg initially at rest is acted upon by two mutually perpendicular forces 12N and 5N as shown in fig.3. If the particle moves in the direction QA, calculate the magnitude of the acceleration Options:
  A) 0.40ms^-2
  B) 1.40ms^-2
  C) 0.26ms^-2
  D) 2.60ms^-2
  E) 3.40ms^-2
  Show Answer
  The correct answer is D .
• Question 1064: What precaution should a manufacturer take to ensure that energy loss in a transformer is minimized? Options:
  A) the winding of the transformer should be made of high resistance wire
  B) the core should be made of thin sheets of metal
  C) no magnetic material should be used to make the core
  D) the flux linking the primary with the secondary coils should be minimum
  Show Answer
  The correct answer is B .
• Question 1065: In a wheel and axle mechanism the diameters of the wheel and axle are 40cm and 8cm respectively. Given that the machine is 80% efficient, what effort is required to lift a load of 100N? Options:
  A) 20N
  B) 25N
  C) 50N
  D) 80N
  Show Answer
  The correct answer is B .
• Question 1066: If a beaker is filled with water it is observed that the surface of the water is not horizontal at the glass-water interface. This behavior is due to Options:
  A) friction
  B) viscosity
  C) surface tension
  D) evaporation
  Show Answer
  The correct answer is C .
• Question 1067: A particle of weight 120N is placed on a plane inclined at 30⁰ to the horizontal. If the plane has an efficiency of 60% to the floor what is the force required to push the weight uniformly up the plane? Options:
  A) 50N
  B) 100N
  C) 175N
  D) 210N
  Show Answer
  The correct answer is B .
• Question 1068: Which of the following statements about wave motion is correct? Options:
  A) Electromagnetic waves are transverse
  B) Transverse waves do not require a medium for propagation
  C) Longitudinal waves vibrate perpendicular to the direction of travel
  D) All mechanical waves are longitudinal
  Show Answer
  The correct answer is A .
• Question 1069:

  A piece of radioactive material contains 10²⁰ atoms.

  If the half life of the material is 20 seconds, the number of disintegration in the first second is

  Options:
  A) 3.47 x 10¹⁸
  B) 6.93 x 10 ²⁰
  C) 3.47 x 10²⁰
  D) 6.93 x 10¹⁸
  Show Answer
  The correct answer is A .
• Question 1070:

  Which of the following may be used to determine relative humidity in a physics laboratory?
  I. Manometer
  II. Wet-and-dry bulb hygrometer
  III. Hair hygrometer
  IV. A hydrometer.

  Options:
  A) III only
  B) I only
  C) II only
  D) II and III only
  Show Answer
  The correct answer is D .