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 371: The terminal velocity of a ball-bearing falling through a viscous fluid reached when the Options:
  A) upthrust is equal to the weight of the ball
  B) ball accelerate uniformly
  C) upthrustis equal to the velocity of the ball
  D) velocity is uniform
  Show Answer
  The correct answer is D .
• Question 372: An object 0 lies at a distance m in front of concave mirror of focal length f. If m < f, then the final image obtained will be Options:
  A) virtual and diminished
  B) magnified and erect
  C) real and inverted
  D) diminished and erect
  Show Answer
  The correct answer is C .
• Question 373: The equation of a wave is y = 0.005 sin[x(0.5X - 200t)] where x and y are in meters and t is in seconds. What is the velocity of the wave? Options:
  A) 4000ms^-1
  B) 400ms^-1
  C) 250ms^-1
  D) 40ms^-1
  Show Answer
  The correct answer is B .
• Question 374:

  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 375: A man whose mass is 80kg climbs a staircase in 20s and expends power of 120W. Find the height of the staircase.[g = 10ms^-2] Options:
  A) 1.8m
  B) 2.0m
  C) 2.5m
  D) 3.0m
  Show Answer
  The correct answer is D .
• Question 376: I. Refraction II. Interference III. Diffraction
  Which of the above properties are common to all waves? Options:
  A) II and III only
  B) I, II and III
  C) I and II only
  D) I and III only
  Show Answer
  The correct answer is B .
• Question 377:

  I. Work done by load is always less than the work done by effort.

  II. All machines are made of levers, pulleys, screws and gear wheels.

  III. A fishing rod is a machine.

  Iv. Effort is always larger than load.

  which of statements above about machines are true?

  Options:
  A) I and III
  B) III and IV
  C) I and III
  D) II and III
  Show Answer
  The correct answer is C .
• Question 378: For a best result using temperature to achieve an accurate measurement, it is best to use Options:
  A) Mercury thermometer
  B) gas thermometer
  C) clinical thermometer
  D) alcohol thermometer
  Show Answer
  The correct answer is B .
• Question 379: Calculate the heat energy lost when 10g of boiling water changes to ice at 0°C. [Specific latent heat of ice 336Jg^-1 . Specific heat capacity of water 4.2Jg^-1 K^-1] Options:
  A) 840J
  B) 3360J
  C) 3420J
  D) 4200J
  E) 7560J
  Show Answer
  The correct answer is E .
• Question 380: The resistance in a series R-C circuit is 5 Ω. If the impedance of the circuit is 13 Ω, calculate the reactance of the capacitor Options:
  A) 65 Ω
  B) 18 Ω
  C) 16 Ω
  D) 14 Ω
  E) 12 Ω
  Show Answer
  The correct answer is E .