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 2051: 200g of water at 90^oC is mixed with 100g of water at 30^oC. What is the final temperature? Options:
  A) 50^oC
  B) 60^oC
  C) 70^oC
  D) 80^oC
  Show Answer
  The correct answer is C .
• Question 2052: 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 2053:

  The inner diameter of a test tube can be measured accurately using a?

  Options:
  A) micrometer screw gauge
  B) pair of dividers
  C) meter rule
  D) pair of vernier calipers
  Show Answer
  The correct answer is D .
• Question 2054: A man exerts a pressure of 2.8 x 10³Nm^-2 on the ground and has 4 x 10^-2m² of his feet in contact with the ground. The weight of the man is Options:
  A) 102N
  B) 70N
  C) 140N
  D) 112N
  Show Answer
  The correct answer is D .
• Question 2055: The heat from the sun reaches the earth by the process Options:
  A) insulation
  B) precipitation
  C) conduction
  D) convection
  E) radiation
  Show Answer
  The correct answer is E .
• Question 2056: 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 2057:

  The time rate of loss of heat by a body is proportional to the

  Options:
  A) temperature of its surroundings
  B) temperature of the body
  C) difference in temperature between the body and its surroundings
  D) ratio of the temperature of the body to that of its surroundings
  Show Answer
  The correct answer is C .
• Question 2058:

  I It retains its magnetic much longer than steel.

  II It is more easily magnetized than steel

  III It is more easily demagnetized than steel

  IV It produces a stronger magnet than steel

  Which combination of the above makes iron preferable to steel in the making of electromagnets?

  Options:
  A) I and II only
  B) II and III only
  C) I, III, and IV only
  D) II, III and IV only
  Show Answer
  The correct answer is B .
• Question 2059: An object placed at the bottom of a well full of clear water appears closer to the surface due to? Options:
  A) diffraction
  B) reflection
  C) refraction
  D) polarization
  Show Answer
  The correct answer is C .
• Question 2060:

  I. It retains its magnetic much longer than steel.
  II. It is more easily magnetized than steel.
  III. It is more easily demagnetized than steel.
  IV. It produces a stronger magnet than steel.

  Which combination of the above makes iron preferable to steel in the making of electromagnets?

  Options:
  A) I and II only
  B) II and III only
  C) I, III, and IV only
  D) II, III and IV only
  Show Answer
  The correct answer is B .