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 411: A student is at a height 4m above the ground during a thunderstorm. Give that the potential difference between the thundercloud and the ground is 10⁷v, the electric field created by the storm is Options:
  A) 2.0 * 10⁶ NC ^-1
  B) 2. 5 * 10⁶ NC ^-1
  C) 1.0 * 10⁷ NC ^-1
  D) 4.0 * 10⁷ NC ^-1
  Show Answer
  The correct answer is B .
• Question 412: If tension is maintained on a stretched string of length 0.6m, such that its fundamental frequency of 220Hz is excited, determine the velocity of the transverse wave in the string. Options:
  A) 528 ms^-1
  B) 264 ms^-1
  C) 132 ms^-1
  D) 66 ms^-1
  Show Answer
  The correct answer is B .
• Question 413: Which of the following types of motion is/are exhibited by a cylindrical drum rolling down an incline plane? Options:
  A) Random and rotational
  B) Rotational and oscillatory
  C) Rotational only
  D) Translations only
  E) Translational and rotational
  Show Answer
  The correct answer is E .
• Question 414: Normal atmospheric pressure at sea-level is 10⁵Nm^-2 and the acceleration due to gravity is approximately 10ms^-1. If the atmosphere has a uniform density of 1kgm^-3, its height is Options:
  A) 100m
  B) 1000m
  C) 10 000m
  D) 100 000m
  E) 1000 000m
  Show Answer
  The correct answer is C .
• Question 415:

  A body is uniformly accelerated from rest. Which of the following quantities vary/varies linearly with the square of the time? I. Displacement

  II. Velocity

  III. Momentum

  Options:
  A) I only
  B) II only
  C) III only
  D) I and II only
  E) II and Ill only
  Show Answer
  The correct answer is A .
• Question 416: 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 417: Four cells each of e.m.f 1.5V and internal resistance of 4Ω are connected in parallel. What is the effective e.m.f. and internal resistance of the combination? Options:
  A) 6.0V, 16Ω
  B) 6.0V, 1Ω
  C) 1.5V, 4Ω
  D) 1.5V, 1Ω
  Show Answer
  The correct answer is D .
• Question 418: An image in a convex lens is upright and magnified 3 times. If the focal length of the lens is 15 cm, what is the object distance? Options:
  A) 10 cm
  B) 25 cm
  C) 16 cm
  D) 14 cm
  Show Answer
  The correct answer is A .
• Question 419: A tugboat is travelling from Asaba to Onitsha across the River Niger with a resultant velocity of 20 knots. If the river flows at 12 knots, the direction of motion of the boat relative to the direction of water flow is Options:
  A) 36.87^oC
  B) 53.13^oC
  C) 90^oC
  D) 136^oC
  E) 143.13^oC
  Show Answer
  The correct answer is B .
• Question 420:

  

  In a given circuit, the cell P has an emf 1.5V and an unknown internal resistance while cell Q has an emf 2.0V and an internal resistance of 1 ohm if the ammeter reads 50m A, Then r is equal to

  Options:
  A) 0.5 ohm
  B) 0.62 ohm
  C) 1.0 ohm
  D) 2.0 ohm
  E) 3.0 ohm
  Show Answer
  The correct answer is D .