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 2241:

  

  The diagram above is the heating curve for a solid QR is the

  Options:
  A) melting region
  B) boiling region
  C) sublimation region
  D) evaporating process
  Show Answer
  The correct answer is A .
• Question 2242:

  

  The diagram above represents balls in an undulating surface. Which of the following option represents positions of stable equilibrium?

  Options:
  A) III, IV and VIII
  B) II, V and VIII
  C) III, VI and IX
  D) I, IV and VII
  Show Answer
  The correct answer is C .
• Question 2243: A body is released from rest and allowed to fall freely from a given height under gravity. The kinetic energy at its half-way point is Options:
  A) a little above half of its initial energy
  B) a little below half of its initial energy
  C) a half of its initioal energy
  D) a little above its initial energy
  E) a little below its initial energy
  Show Answer
  The correct answer is C .
• Question 2244: To protect a material from the influnce of an external magnetic field, the materials should be kept Options:
  A) square steel ring
  B) triangular zinc ring
  C) soft iron ring
  D) loop of copper wire
  Show Answer
  The correct answer is C .
• Question 2245: 22,000J of heat is required to raise the temperature of 1.5kg of paraffin from 20^oC to 30^oC. Calculate the specific heat capacity of paraffin. Options:
  A) 1466Jkg^-1oC^-1
  B) 2933Jkg^-1oC^-1
  C) 4400Jkg^-1oC^-1
  D) 5866Jkg^-1oC^-1
  Show Answer
  The correct answer is A .
• Question 2246:

  One of the following readings represents the measurement of thelength of a metal rod using vernier callipers. Taking the reading accuracy into consideration, the most likely one is

  Options:
  A) 5.16cm
  B) 5.165cm
  C) 5.0cm
  D) 5.160cm
  Show Answer
  The correct answer is A .
• Question 2247:

  

  An air column 10cm in length is trapped into the sea end of a capillary tube by a 15cm column of mercury with the tube held vertically as shown above. On inverting the tube the air column becomes 15cm long. The atmospheric pressure during the experiment is

  Options:
  A) 90cm
  B) 76cm
  C) 75cm
  D) 60cm
  E) 50cm
  Show Answer
  The correct answer is B .
• Question 2248: An object is placed directly below a glass block of thickness 3.0cm. Calculate the lateral displacement of the object if the refractive index of the glass is 1.5. Options:
  A) 1.0cm
  B) 1.5cm
  C) 2.0cm
  D) 2.5cm
  Show Answer
  The correct answer is A .
• Question 2249: Which of the following pairs of light rays show the widest separation in the spectrum of white light Options:
  A) Blue and red
  B) Green and yellow
  C) Indigo and violet
  D) Orange and red
  Show Answer
  The correct answer is A .