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 2121: Which of the following is stored by a dry Leclanche cell? Options:
  A) Electrical power
  B) Kinetic energy
  C) Electric current
  D) Chemical energy
  Show Answer
  The correct answer is D .
• Question 2122: A series RLC circuit is said to resonate, when Options:
  A) capacitive reactance is zero
  B) conductance is maximum
  C) current is minimum
  D) impedance is minimum
  E) inductive reactance is zero
  Show Answer
  The correct answer is D .
• Question 2123:

  Which component of fiber-optic connector has a provision of entry for the fibre along with the fixationto connector housing?

  Options:
  A) coupling device
  B) cable
  C) ferrule
  D) connector housing
  Show Answer
  The correct answer is A .
• Question 2124: Which of the following statements are true of the law of universal gravitation? Options:
  A) any two bodies attract each other with a force which is proportional to the difference of their masses
  B) any two bodies attract each other with a force which is inversely proportional to the square of the distance between them
  C) any two bodies attract each other with a force which is proportional to the product of their masses and inversely proportional to the square of the distance between them
  D) any two bodies attract each other with a force which is proportional to the square of the distance between them
  E) any two bodies attract each other with a force which is proportional to the sum of their masses
  Show Answer
  The correct answer is C .
• Question 2125: Electric charges on the surface of a conductor would be most evenly distributed if the shape of the conductor is Options:
  A) conical
  B) cubical
  C) cylindrical
  D) parabolic
  E) spherical
  Show Answer
  The correct answer is C .
• Question 2126: A few grains of table salt were put in a cup of water, kept at constant temperature and left undisturbed. Eventually all the water tasted salty. The action is due to Options:
  A) convection
  B) osmosis
  C) capillarity
  D) diffusion
  E) conductivity
  Show Answer
  The correct answer is D .
• Question 2127: Radio waves belong to the class of wave whose velocity is about Options:
  A) 34m/s
  B) 3 ×10⁶m/s
  C) 3 ×10⁸m/s
  D) 3 × 10^-8m/s
  Show Answer
  The correct answer is C .
• Question 2128: A transistor is used in the amplification of signals because it Options:
  A) controls the flow of current
  B) consumes a lot of power
  C) allows doping
  D) contains electron and hole carriers
  Show Answer
  The correct answer is A .
• Question 2129: 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 .
• Question 2130:

  Which of the following is true for the image formed by a convex mirror?
  i. the image is always virtual
  ii. the image is always erect
  iii. the image lies between pole and focus
  iv. the image is never magnified
  v. the focus length is negative

  Options:
  A) i only
  B) i and ii only
  C) ii and iii only
  D) i, ii, iii and iv only
  E) all five
  Show Answer
  The correct answer is E .