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 641:

  Which of the units of the following physical quantities are derived?

  I. Area
  II. Thrust
  III. Pressure
  IV. Mass

  Options:
  A) I, II, III and IV
  B) I, II, and III only
  C) I, II, and IV only
  D) I and IV only
  Show Answer
  The correct answer is B .
• Question 642:

  Rainbow formation is as a result of the combination of which of the following phenomena?
  (i) Reflection
  (ii) Dispersion
  (iii) Total internal reflection
  (iv) Refraction

  Options:
  A) (ii) and (iv) only
  B) (i), (iii) and (iv) only
  C) (ii), (iii) and (iv) only
  D) (i), (ii) and (iv) only
  Show Answer
  The correct answer is C .
• Question 643: Which of the following is required to convert a milliammeter to an ammeter? Options:
  A) A high resistance in parallel
  B) A high resistance in series
  C) A low resistance in parallel
  D) A low resistance in series
  Show Answer
  The correct answer is C .
• Question 644: Food cook quicker in salt water than in pure water because of the effect of Options:
  A) dissolved substances on the boiling point
  B) atmospheric pressure on the boiling point
  C) food nutrients on the thermal energy
  D) salts on the thermal conductivity of water
  Show Answer
  The correct answer is A .
• Question 645: the pressure of 3 moles of an ideal gas at a temperature of 27°C having a volume of 10^-3m³ is Options:
  A) 2.49 x 10⁵-2
  B) 7.47 x 10⁵-2
  C) 2.49 x 10⁶-2
  D) 7.47 x 10⁶-2
  Show Answer
  The correct answer is D .
• Question 646:

  The graph of pressure (P) against the reciprocal of the volume (I/V) in Boyles's law is a?

  Options:
  A) hyperbola
  B) parabola
  C) curve
  D) straight line
  Show Answer
  The correct answer is D .
• Question 647: A thin wire with heavy weights attached to both ends is hung over a block of ice resting on two supports. If the wire cuts through the ice block while the block remains solid behind the wire, the process is called Options:
  A) condensation
  B) sublimation
  C) regelation
  D) fusion
  Show Answer
  The correct answer is C .
• Question 648: A circuit has an area of 0.4m² and consists of 50 loops of wire. If the loops are twisted and allowed to rotate at a constant angular velocity of 10 rad s^-1 in a uniform magnetic field of 0.4T, the amplitude of the induced voltage is Options:
  A) 8V
  B) 16V
  C) 20V
  D) 80V
  Show Answer
  The correct answer is D .
• Question 649: Neutron were discovered by Options:
  A) J.J. Thompson
  B) James Chadwick
  C) Michael faraday
  D) Dalton
  Show Answer
  The correct answer is B .
• Question 650: The resistance of a 5m uniform wire of cross-sectional area 0.2 x 10^-6m² is 0.425. What is the resistivity of the material of the wire? Options:
  A) 1.10 x 10^-6$\mathrm{\Omega }$m
  B) 4.25 x 10^-6$\mathrm{\Omega }$m
  C) 2.40 x 10^-7$\mathrm{\Omega }$m
  D) 1.70 x 10^-8$\mathrm{\Omega }$m
  Show Answer
  The correct answer is D .