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 421: A good electric cell should have the following except Options:
  A) A minimum of polarization effect
  B) A long life
  C) A cheap and safe electrolytes
  D) Cost and dangerous of the cell
  Show Answer
  The correct answer is D .
• Question 422: A stone of mass 1kg is dropped from a height of 10m above the ground and falls freely under gravity. Its kinetic energy 5m above the ground is then equal to Options:
  A) its kinetic energy on the ground
  B) twice its initial potential energy
  C) its initial potential energy
  D) half its initial potential energy
  Show Answer
  The correct answer is D .
• Question 423: 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 424: Semiconductor is a class of solid whose conductivity increases with an increase in Options:
  A) Pressure
  B) Temperature
  C) Current
  D) Voltage
  Show Answer
  The correct answer is B .
• Question 425: In the normal use of a simple microscope, a person sees an Options:
  A) inverted, virtual and magnified image
  B) erect, virtual and magnified image
  C) erect, real and magnified image
  D) inverted, real and magnified image
  E) inverted and real image the same size as the object.
  Show Answer
  The correct answer is B .
• Question 426:

  The mechanical advantage (MA) of an inclined plane depends on

  Options:
  A) its length
  B) its height
  C) the product of its length and height
  D) the ratio of its length to its height
  Show Answer
  The correct answer is D .
• Question 427: In order to convert a galvanometer into an ammeter Options:
  A) a low resistance shunt is connected in parallel
  B) a low resistance shunt is connected in series
  C) a medium resistance shunt is connected in series
  D) a high resistance shunt is connected in parallel
  E) a high resistance shunt is connected in series
  Show Answer
  The correct answer is A .
• Question 428: Which of the following is a fundamental unit? Options:
  A) Newton
  B) Watt
  C) Joule
  D) Second
  Show Answer
  The correct answer is D .
• Question 429:

  

  In the circuit above, The potential across each capacitor is 100V. The total energy stored in the two capacitors is

  Options:
  A) 3.0 x 10⁴J
  B) 3.0 x 10²J
  C) 2.5 x 10^-2J
  D) 6.0 x 10^-3J
  Show Answer
  The correct answer is C .
• Question 430: If the refractive index of a medium is V2, what is the critical angle? Options:
  A) 45^o
  B) 50^o12'
  C) 56^o25'
  D) 75^o
  E) 90^o
  Show Answer
  The correct answer is A .