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 1041:

  

  The diagram above represents the graph of the force F applied in stretching a spiral spring against the corresponding extension (X). The force constant of the spring is

  Options:
  A) 20 Nm^-1
  B) 40 Nm^-1
  C) 30 Nm^-1
  D) 10 Nm^-1
  Show Answer
  The correct answer is A .
• Question 1042: 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 1043: A gas at pressure PN-m^-2 and temperature 27^oC is heated to 77^oC at constant volume. The new pressure is Options:
  A) 0.85 PN-m^-2
  B) 0.86 PN-m^-2
  C) 1.16 PN-m^-2
  D) 1.18 PN-m^-2
  E) 2.85 PN-m^-2
  Show Answer
  The correct answer is C .
• Question 1044: 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 1045: Of the following which is different from the other? Options:
  A) x-rays
  B) gamma-rays
  C) cathode rays
  D) ultra violet rays
  E) infrared rays
  Show Answer
  The correct answer is C .
• Question 1046: A stand-by generator is connected to fifteen 40 W lamps and musician's 600 W amplifying system. How much energy is used if the generator runs for 6 hours? Options:
  A) 3.84k Wh
  B) 7.20k Wh
  C) 8.40k Wh
  D) 12.00k Wh
  E) 14.56k Wh
  Show Answer
  The correct answer is B .
• Question 1047: Two forces A and B act at a point. If their resultant is [given by] (B - A) in the direction of B, then Options:
  A) A and B are equal
  B) A is greater than B
  C) the angle between A and B is 0°
  D) the angle between A and B is 90°
  E) the angle between A and B is 180°
  Show Answer
  The correct answer is E .
• Question 1048: Calculate the heat energy lost when 10g of boiling water changes to ice at 0°C. [Specific latent heat of ice 336Jg^-1 . Specific heat capacity of water 4.2Jg^-1 K^-1] Options:
  A) 840J
  B) 3360J
  C) 3420J
  D) 4200J
  E) 7560J
  Show Answer
  The correct answer is E .
• Question 1049:

  

  An object is positioned between two plane mirrors inclined at right angles to each other. The object is 1 unit from each mirror. The number of images formed is

  Options:
  A) 1
  B) 2
  C) 3
  D) 4
  E) 5
  Show Answer
  The correct answer is C .
• Question 1050: 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 .