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 971:

  Aluminium is sometimes used as the leaf of an electroscope because it

  Options:
  A) is a light material
  B) is a good conductor
  C) is a good insulator
  D) can be converted into thin sheets
  Show Answer
  The correct answer is D .
• Question 972: A thin film of liquid is trapped between two glass plates. The force required to pull the plates apart will increase if the Options:
  A) surface tension of the liquid is reduced
  B) perpendicular distance between the plates is increased
  C) area of the liquid surface in contact with the plates is increased
  D) pressure of the air is decreased
  Show Answer
  The correct answer is C .
• Question 973: What does NOT affect the rate of evaporation of a liquid Options:
  A) exposed surface area of the liquid
  B) humidity of the surroundings
  C) nature of the liquid
  D) temperature the liquid
  E) volume of the liquid.
  Show Answer
  The correct answer is E .
• Question 974:

  If a source of solid is moving, a stationary listener will hear a sound of different frequency. This is called?

  Options:
  A) doppler effect
  B) resonance
  C) ultra sound
  D) rarefaction
  Show Answer
  The correct answer is A .
• Question 975:

  

  A body of mass 10kg on a smooth inclined plane is connected to a smooth pulley to a mass of 15kg as shown above, the acceleration of the system is

  Options:
  A) 1/4g
  B) 8/25g
  C) 1/2g
  D) 2/5g
  E) 3/4g
  Show Answer
  The correct answer is D .
• Question 976:

  

  The diagram above shows the prism arrangement in a

  Options:
  A) Microscope
  B) tereoscope
  C) projector
  D) periscope
  E) gyroscope
  Show Answer
  The correct answer is D .
• Question 977: Calculate the apparent weight loss of a man weighing 70kg in an elevator moving downwards with an acceleration of 1.5ms^-2. [g = 10ms^-2] Options:
  A) 686N
  B) 595N
  C) 581N
  D) 105N
  Show Answer
  The correct answer is D .
• Question 978: What is the relative permitivity of a capacitor if its capacitance with a medium as dielectric is 16 farads and its capacitance with vacuum as dielectric is 2 farads? Options:
  A) o
  B) $\frac{1}{2}$
  C) 2
  D) 8
  E) 32
  Show Answer
  The correct answer is D .
• Question 979: Two forces A and B act at a point. If their resultant is [given by] (B - A) in the direction of B, then Options:
  A) A and B are equal
  B) A is greater than B
  C) the angle between A and B is 0°
  D) the angle between A and B is 90°
  E) the angle between A and B is 180°
  Show Answer
  The correct answer is E .
• Question 980: 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 .