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 521: A radioactive substance has a half-life of 3 minutes. After 9 minutes, the count rate was observed to be 200. What was the count rate at zero time? Options:
  A) 200
  B) 1200
  C) 1600
  D) 2400
  E) 4800
  Show Answer
  The correct answer is C.
• Question 522: Which of the following pairs of light rays shows the widest separation in the spectrum of white light? Options:
  A) Yellow and red
  B) Orange and green
  C) Violet and blue
  D) Blue and green
  E) Red and indigo
  Show Answer
  The correct answer is E.
• Question 523:

  

  A force F is applied to a body P as shown in the diagram above. If the body P moves through a distance r, which of the following represents the work done?

  Options:
  A) Fx
  B) F^cosθ/_x
  C) Fx tanθ
  D) Fx sinθ
  E) Fx cosθ
  Show Answer
  The correct answer is E.
• Question 524: 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 525: 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 526: 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.
• Question 527:

  Arrange the following in the order of their increasing frequency.I. Visible light

  II. Gamma rays

  III. Radio waves

  IV. Infra-red radiation

  V. Ultra-violet radiation

  Options:
  A) I, II, III, IV, V
  B) II, III, IV, V, I
  C) III, IV, V, I, II
  D) IV, III, I. V, II
  E) III, IV, I,V, II
  Show Answer
  The correct answer is E.
• Question 528: 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 529: 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 530: Electric charges on the surface of a conductor would be most evenly distributed if the shape of the conductor is Options:
  A) conical
  B) cubical
  C) cylindrical
  D) parabolic
  E) spherical
  Show Answer
  The correct answer is C.