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 61: One of the following readings represents the measurement of the length of a metal rod using vernier callipers, Taking the reading accuracy into consideration, the most likely one is Options:
  A) 5.15cm
  B) 5.165cm
  C) 5.0cm
  D) 5.160cm
  E) 5cm
  Show Answer
  The correct answer is A .
• Question 62: A force of 100N stretches an elastic string to a total length of 20cm. If an additional force of 100N stretches the string 5cm further, Find the natural length of the string Options:
  A) 15cm
  B) 12cm
  C) 10cm
  D) 8cm
  E) 5cm
  Show Answer
  The correct answer is A .
• Question 63: The threshold of frequency for photoelectric effect depends on the Options:
  A) intensity of incident light
  B) frquency of incident light
  C) material of the photocathode
  D) potential difference between the cathode and the anode
  Show Answer
  The correct answer is C .
• Question 64: If the load at the end of a sonometer wire is immersed in a bucket of water, the original fundamental frequency of the wire could be restored by Options:
  A) decrease the length of the wire
  B) increasing the length of the wire
  C) increasing the mass per unit length of the wire
  D) changing the temperature of the wire
  Show Answer
  The correct answer is B .
• Question 65: A piece of wood is floating on water. The forces acting on the wood are Options:
  A) upthrust and reaction
  B) weight and reaction
  C) weight and upthrust
  D) upthrust and viscousity
  E) weight and viscousity
  Show Answer
  The correct answer is C .
• Question 66:

  Gases conduct electricity under

  Options:
  A) high pressure and high voltage
  B) low pressure and low voltage
  C) normal pressure and low voltage
  D) low pressure and high voltage
  Show Answer
  The correct answer is D .
• Question 67:

  A charge of $4.6\times {10}^{-5}$C is placed in an electric field of intensity $3.2\times {10}^4$$V{m}^{-1}$. What is the force acting on the electron?

  Options:
  A) 1.5 N
  B) 3.7 N
  C) 4.2 N
  D) 2.5 N
  Show Answer
  The correct answer is A .
• Question 68: 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 69:

  

  In the diagram above, which of the following velocity-time graphs shows uniform acceleration of a body from rest?

  Options:
  A) C
  B) D
  C) B
  D) A
  Show Answer
  The correct answer is C .
• Question 70: Non-luminous object can be seen because they Options:
  A) reflect light
  B) are near
  C) are polished
  D) emit light
  Show Answer
  The correct answer is A .