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 541:

  

  Which of the following bodies, each with centre of gravity G, lying on a horizontal table, is/are in unstable equilibrium?

  Options:
  A) II only
  B) III only
  C) I and IV only
  D) II and III only
  Show Answer
  The correct answer is B .
• Question 542: Volatile liquids usually Options:
  A) Have high boiling points
  B) have low boiling points
  C) have high densities
  D) have high melting points
  Show Answer
  The correct answer is B .
• Question 543: If the magnification of a virtual image formed of an object 10cm from a convex lens is 3, then the focal length of the lens is Options:
  A) 10cm
  B) 15cm
  C) 16cm
  D) 19cm
  E) 20cm
  Show Answer
  The correct answer is B .
• Question 544: When a certain a.c supply is connected to a lamp, it lights with the same brightness as it does with a 12 V d.c battery. Then r.m.s value of the a.c supply is? Options:
  A) 12.0 V
  B) 3.5 V
  C) 17.0 V
  D) 8.5
  Show Answer
  The correct answer is A .
• Question 545: 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 546:

  I. Density of the liquid.

  II. Depth below the surface of the liquid.

  III. Surface area of the liquid.

  In which of the statement above will pressure be dependent?

  Options:
  A) I and II only.
  B) II and III only.
  C) I, II and III only.
  D) I and III only.
  Show Answer
  The correct answer is A .
• Question 547: The phenomenon of photoelectric effect is used in the following EXCEPT Options:
  A) automatic doors
  B) bugler alarm
  C) electric fire alarm
  D) sound production from film tracks
  E) television cameras
  Show Answer
  The correct answer is D .
• Question 548: The d.c generator has essentially the same components as the a.c generator except the presence of? Options:
  A) slip-ring
  B) carbon brushes
  C) split ring
  D) armature
  Show Answer
  The correct answer is C .
• Question 549: The dimension of electromotive force are ` Options:
  A) ML²T^-3I^-1
  B) ML²T^-3I^-2
  C) M²LT^-2I^-1
  D) M²L²T^-1I^-1
  Show Answer
  The correct answer is A .
• Question 550: An aircraft travelled from calabar to kano as follows: it flew first to ilorin convering a distance of 300km, 30^o west of North, and then flew 400km, 60^o East of North to kano. What is the resultant displacement? Options:
  A) 567km
  B) 410km
  C) 594km
  D) 500km
  E) 600km
  Show Answer
  The correct answer is D .