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 1091:

  A solid weighs 4.8g in air, 2.8g in water and 3.2g in Kerosine. The ratio of density of the solid to that of the kerosine is

  Options:
  A) 2
  B) $\frac{3}{2}$
  C) $\frac{2}{3}$
  D) 3
  Show Answer
  The correct answer is D .
• Question 1092:

  

  A particle is injected perpendicularly into an electric field, it travels along a curved path as depicted in the image above,the particle is

  Options:
  A) gamma ray
  B) electron
  C) neutron
  D) proton
  Show Answer
  The correct answer is B .
• Question 1093:

  A piece of substance of specific heatcapacity 450Jkg${}^{-1}$k${}^1$ falls through a vertical distance of 20m from rest. Calculate the rise in temperature of the substance on hitting the ground when all its energies are converted into heat. [g = 10ms${}^{-2}$]

  Options:
  A) $\frac{2}{9}$ºC
  B) $\frac{4}{9}$ºC
  C) $\frac{9}{2}$ºC
  D) $\frac{9}{4}$ºC
  Show Answer
  The correct answer is B .
• Question 1094: The gravitational field intensity at a location X, in space, is two-fifths of its value on the earth’s surface. If the weight of an object at X is 4.80N. what is its weight on the earth? Options:
  A) 1.92N
  B) 2.88N
  C) 6.72N
  D) 8.00N
  E) 12.00N
  Show Answer
  The correct answer is E .
• Question 1095: A milliameter with full scale deflection of 10mA has an internal resistance of 5 ohms. It would be converted to an ammeter with a full scale deflection of 1A by connecting a resistance of Options:
  A) $\frac{5}{99}$ohms in series with it
  B) $\frac{5}{99}$ohms in parallel with it
  C) $\frac{99}{5}$ohms in series with it
  D) $\frac{99}{5}$ohms in parallel with it
  E) 2 ohms in series with it
  Show Answer
  The correct answer is B .
• Question 1096: A piece of substance of specific head capacity 450JKg^-1K^-1 falls through a vertical distance of 20m from rest. Calculate the rise in temperature of the substance on hitting the ground when all its energies are converted into heat. [g = 10ms^-2] Options:
  A) 2/9°C
  B) 4/9°C
  C) 9/4°C
  D) 9/2°C
  Show Answer
  The correct answer is B .
• Question 1097: Which of the following pairs of light rays shows the widest separation in the spectrum of white light? Options:
  A) Red and blue
  B) Orange and green
  C) Red and indigo
  D) Violet and green
  E) Yellow and red
  Show Answer
  The correct answer is C .
• Question 1098: Which of the following pairs of musical instruments produce sound due to the vibration of air column? Options:
  A) Bell and piano
  B) Guitar and flute
  C) Trumpet and drum
  D) Trumpet and flute
  E) Violin and organ
  Show Answer
  The correct answer is D .
• Question 1099: The temperature at which the water vapour present in the air saturates the air and begins to condense is known as Options:
  A) boiling point
  B) melting point
  C) triple point
  D) dew point
  E) critical temperature
  Show Answer
  The correct answer is D .
• Question 1100: A high-resistance voltmeter reads 3.0V when connected across the terminals of a battery on open circuit and 2.6V when the battery supplies a current of 0.2A through a lamp. The resistance of lamp is Options:
  A) 2.00$\mathrm{\Omega }$
  B) 13.00$\mathrm{\Omega }$
  C) 0.52$\mathrm{\Omega }$
  D) 0.13$\mathrm{\Omega }$
  E) 1.50$\mathrm{\Omega }$
  Show Answer
  The correct answer is B .