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 1141: A mass of gas at 7^oC and 70cm of mercury has a volume of 1200cm³. Determine its volume at 27^oC and pressure of 75cm of mercury. Options:
  A) 1200cm³
  B) 1378cm³
  C) 4320cm³
  D) 4629cm³
  Show Answer
  The correct answer is A .
• Question 1142: If the capacitance of an capacitor is C = (εA)/d, which of the following parameters is varied when a variable capacitors is used for tuning radio sets? Options:
  A) constant (ε) and area
  B) area and distance.
  C) constant (ε) only
  D) distance only
  Show Answer
  The correct answer is B .
• Question 1143: The relationship between L and the wavelength I of the stationary wave is Options:
  A) 2L = $\lambda$
  B) L = $\lambda$
  C) L = $\frac{\lambda }{3}$
  D) 4L = 3 $\lambda$
  Show Answer
  The correct answer is D .
• Question 1144: Under constant tension and constant mass per unit length, the note produced by a plucked string is 500Hz when the length of the string is 0.90m. At what length is the frequency 150Hz? Options:
  A) 3m
  B) 4m
  C) 5m
  D) 6m
  Show Answer
  The correct answer is A .
• Question 1145: An aircraft travelled from calabar to kano as follows: it flew first to ilorin convering a distance of 300km, 30^o west of North, and then flew 400km, 60^o East of North to kano. What is the resultant displacement? Options:
  A) 567km
  B) 410km
  C) 594km
  D) 500km
  E) 600km
  Show Answer
  The correct answer is D .
• Question 1146:

  The statement 'Heat lost by the hot body equals that gained by the cold one' is assumed when determining specific that heat capacity by the method of mixtures. Which of the following validates the assumption?

  I. Lagging the Calorimeter

  II. Ensuring that only S.I units are used

  III. Weighing the calorimeter, the lid and the stirrer.

  Options:
  A) I only
  B) I and II only
  C) I and III only
  D) II and III only
  Show Answer
  The correct answer is C .
• Question 1147: The electromagnetic waves that are sensitive to temperature changes are Options:
  A) X-rays
  B) Gamma-rays
  C) Ultra-violet rays
  D) Infra-red rays
  Show Answer
  The correct answer is D .
• Question 1148: The thermometric properties of the thermocouple is that is Options:
  A) e.m.f. changes with temperature
  B) resistance changes with temperature
  C) volume changes with temperature
  D) pressure changes with resistance
  Show Answer
  The correct answer is A .
• Question 1149: If a metal wire 4m long and cross-sectional area 0.8 mm² has a resistance of 60, find the resistivity of the wire Options:
  A) 5.3x10^-7
  B) 3.0x10^-5
  C) 1.2x10^-6
  D) 3.2x10^-6
  Show Answer
  The correct answer is C .
• Question 1150:

  When the temperature of a liquid increases,its surface tension

  Options:
  A) decreases
  B) increases
  C) remains constant
  D) increases then decreases
  Show Answer
  The correct answer is A .