NECO Physics Exam Past Questions and Answers

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 531: Which of the following statements is correct about light and sound waves? Both Options:
  A) are longitudinal waves
  B) are transverse waves
  C) have the same velocity in air
  D) need a medium for propagation
  E) transmit energy
  Show Answer
  The correct answer is E.
• Question 532: 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 533: 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 534: In which of the following is the expansion of solids a disadvantage? Options:
  A) Electric iron
  B) Fire alarm
  C) The balance wheel of a watch
  D) The bimetallic thermometer
  E) The fitting of wheels in rims
  Show Answer
  The correct answer is C.
• Question 535:

  The rate of diffusion of gases increases with increase(s) in I. density

  II. temperature

  III, mass. Which is/are correct?

  Options:
  A) I only
  B) II only
  C) I and II only
  D) II and III only
  E) I, II and III
  Show Answer
  The correct answer is B.
• Question 536: The length of a side of a metallic cube at 20° C is 5.0cm. Given that the linear expansively of the metal is 4.0 × 10^-5K^-1, find the volume of the cube at 120° C Options:
  A) 124.50cm³
  B) 125.00cm³
  C) 126.00cm³
  D) 126.25cm³
  E) 126.50cm³
  Show Answer
  The correct answer is E.
• Question 537: The length of a side of a metallic cube at 20^oC is 5.0cm. Given that the linear expansivity of the metal is 4.0 x 10^-5k^-1, find the volume of the cube at 120^oC . Options:
  A) 126.50cm³
  B) 126.25cm³
  C) 126.00cm³
  D) 125.00cm³
  Show Answer
  The correct answer is A.
• Question 538: Which of the following types of motion is/are exhibited by a cylindrical drum rolling down an incline plane? Options:
  A) Random and rotational
  B) Rotational and oscillatory
  C) Rotational only
  D) Translations only
  E) Translational and rotational
  Show Answer
  The correct answer is E.
• Question 539: A series RLC circuit is said to resonate, when Options:
  A) capacitive reactance is zero
  B) conductance is maximum
  C) current is minimum
  D) impedance is minimum
  E) inductive reactance is zero
  Show Answer
  The correct answer is D.
• Question 540: Calculate the work done in charging a capacitor of capacitance 20µF through a potential difference of 1000V. Options:
  A) 0.02 J
  B) 0.10 J
  C) 0.20 J
  D) 1.00 J
  E) 10.00 J
  Show Answer
  The correct answer is E.