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 2621:

  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 2622: The speed of sound in air at sea-level is 340ms^-1 while that of light is 300 000kms^-1. How far (to the nearest meter) from the center of a thunderstorm is an observer who hears a thunder 2s after a lightening flash? Options:
  A) 170ms^-1
  B) 340ms^-1
  C) 600ms^-1
  D) 680ms^-1
  Show Answer
  The correct answer is D .
• Question 2623: The gravitational field intensity at a location X, in space, is two-fifths of its value on the earth’s surface. If the weight of an object at X is 4.80N. what is its weight on the earth? Options:
  A) 1.92N
  B) 2.88N
  C) 6.72N
  D) 8.00N
  E) 12.00N
  Show Answer
  The correct answer is E .
• Question 2624: The correct expression for the potential at a point distance r from a charge q in an electric field is Options:
  A)

  _q2

  4πεor2

  
  B)

  _q2

  4πεor

  
  C)

  _q

  4πεor2

  
  D)

  _q

  4πεor

  
  Show Answer
  The correct answer is D .
• Question 2625: A solid weigh 10 .00 N in air, 6 N when fully immersed in water and 7 . 0 N when fully immersed in a liquid X. Calculate the relative density of the liquid, X. Options:
  A) 5/3
  B) 4/3
  C) 3/4
  D) 7/10
  Show Answer
  The correct answer is C .
• Question 2626: Longitudinal waves do not exhibit Options:
  A) Refraction
  B) Reflection
  C) Diffraction
  D) Polarization
  E) Rarefaction
  Show Answer
  The correct answer is D .
• Question 2627: Satellite communication network makes use of? Options:
  A) visible light
  B) sound wave
  C) radio wave
  D) infra-red wave
  Show Answer
  The correct answer is C .
• Question 2628: The property of a body to remain at rest or to continue to move in a straight line is known as Options:
  A) force
  B) Impulse
  C) Energy
  D) Inertia
  Show Answer
  The correct answer is D .
• Question 2629:

  A simple pendulum, has a period of 5.77 seconds. When the pendulum is shortened by 3 m, the period is 4.60 seconds. Calculate the new length of the pendulum

  Options:
  A) 5.23 m
  B) 6.42 m
  C) 4.87 m
  D) 7.26 m
  Show Answer
  The correct answer is A .
• Question 2630:

  

  In the diagram above, determine the r.m.s current

  Options:
  A) 31A
  B) 48A
  C) 60A
  D) 80A
  Show Answer
  The correct answer is B .