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 281: Which property of a fluid determines its suitability as a lubricant? Options:
  A) Capillarity
  B) Diffusion
  C) Solubility
  D) Surface tension
  E) Viscosity
  Show Answer
  The correct answer is E.
• Question 282: A note, A from a guitar produces a wave of amplitude 4 mm and frequency 1000 Hz. Another note, B from a whistle produces a similar waveform of amplitude 2 mm and frequency 2200 Hz. If the two notes are compared, Options:
  A) A has a higher pitch than B
  B) A is louder than B.
  C) B has a greater speed than A
  D) B is louder than A
  E) A and B have the same quality
  Show Answer
  The correct answer is B.
• Question 283: The temperature at which the water vapour present in the air is just enough to saturate the air is the _______ point. Options:
  A) boiling
  B) critical
  C) dew
  D) ice
  E) steam
  Show Answer
  The correct answer is C.
• Question 284: Which of the following statements is true of nuclear fission? Options:
  A) Heavy nuclei combine to form new element
  B) Protons are used in bombarding heavy nucleus
  C) The sum of the masses of the products is greater than the mass of the original substance
  D) Two light nuclei are made to combine to form a heavy nucleus
  E) Very large amount of energy is released.
  Show Answer
  The correct answer is E.
• Question 285: The frequency of a body executing simple harmonic motion when left undisturbed is known as__________ frequency. Options:
  A) damped
  B) forced
  C) free
  D) natural
  E) sinusoidal
  Show Answer
  The correct answer is D.
• Question 286: When very hot water is poured into a thin-walled glass container, it is less likely to break because Options:
  A) all parts of the container got heated-uniformly
  B) glass can withstand a very high temperature
  C) the molecules of glass are too far apart to cause breakages of the container
  D) the outer part of the container is cooler than the inner part
  E) thin glass does not expand fast
  Show Answer
  The correct answer is A.
• Question 287: An electron makes a transition from - 1.60 eV energy level to - 10.4eV energy level Calculate the energy loss due to the transition. Options:
  A) 16.64eV
  B) 12.00eV
  C) 10.40eV
  D) 8.80eV
  E) 6.50eV
  Show Answer
  The correct answer is D.
• Question 288: A plane which is Inclined at an angle of 30 ° to the horizontal has a velocity ratio of Options:
  A) 2
  B) 1
  C) 0.87
  D) 0.67
  E) 0.5
  Show Answer
  The correct answer is A.
• Question 289:

  A mass of 5kg is suspended from the ceiling of a lift with a light inextensible string. As the lift moves upwards with an acceleration of 2ms^-2, the tension in the string is [g = 10ms^-2]

  Options:
  A) 25N
  B) 40N
  C) 50N
  D) 60N
  E) 70N
  Show Answer
  The correct answer is D.
• Question 290: Which of the following is NOT an example of a percussion instrument? Options:
  A) Bell
  B) Drum
  C) Flute
  D) Gong
  E) Xylophone
  Show Answer
  The correct answer is C.