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 641:

  

  In the diagram shown, which of the simple pendulum will resonate with P when set into oscillation?

  Options:
  A) U
  B) T
  C) R and T
  D) Q and R
  Show Answer
  The correct answer is B .
• Question 642: Which of the following gas laws is equivalent to the work done? Options:
  A) Boyle' law
  B) Charles law
  C) Pressure law
  D) van der Waal's law
  Show Answer
  The correct answer is A .
• Question 643:

  In an elastic collisionI. Energy is conserved

  II. Energy is decreased

  III. Energy is increased

  IV. Linear momentum conversed

  Options:
  A) I only
  B) II and IV only
  C) II only
  D) III only
  Show Answer
  The correct answer is B .
• Question 644: When white light is dispersed by a spectrometer, the component having the shortest wavelength is Options:
  A) orange
  B) green
  C) violet
  D) red
  Show Answer
  The correct answer is C .
• Question 645: If a beaker is filled with water it is observed that the surface of the water is not horizontal at the glass-water interface. This behavior is due to Options:
  A) friction
  B) viscosity
  C) surface tension
  D) evaporation
  Show Answer
  The correct answer is C .
• Question 646: 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 647: 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 648: If the load at the end of a sonometer wire is immersed in a bucket of water, the original fundamental frequency of the wire could be restored by Options:
  A) decrease the length of the wire
  B) increasing the length of the wire
  C) increasing the mass per unit length of the wire
  D) changing the temperature of the wire
  Show Answer
  The correct answer is B .
• Question 649: A brass cube of side 10cm is heated through 30°C. If the linear expansivity of brass is 2.0 × I0^-5 K^-1 , what is the increase in its volume? Options:
  A) 0.06 cm³
  B) 0.18cm³
  C) 0.60cm³
  D) 1.20cm³
  E) 1.80cm³
  Show Answer
  The correct answer is E .
• Question 650:

  If the time of flight is 96seconds, calculate the horizontal range through the point of projection.

  Options:
  A) 84400m
  B) 69000m
  C) 61440m
  D) 24000m
  Show Answer
  The correct answer is C .