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 1571: Which of the following scientists postulated that moving particles exhibit wave properties? Options:
  A) Niels Bohr
  B) Ernest Rutherford
  C) Werner Heisenberg
  D) Louis de Broglie
  E) Erwin Schroedinger
  Show Answer
  The correct answer is D .
• Question 1572: An object placed on the principle axis of a convex lens of focal length 10m produces a real image of double magnification. The image distance from the lens is Options:
  A) 30cm
  B) 25cm
  C) 20cm
  D) 15cm
  E) 10cm
  Show Answer
  The correct answer is A .
• Question 1573:

  A cannon is fired from town X, after how long is the sound heard at a town Y 4.95 km away?

  [velocity of sound in the air = 330 ms^-1]

  Options:
  A) 30 s
  B) 10 s
  C) 10 s
  D) 15 s
  Show Answer
  The correct answer is D .
• Question 1574: An object is projected with a velocity of 50ms^-1 from ground level at an angle θ to the vertical. If the total time of flight of the projectile is 5s, what is the value of θ? (g = 10ms^-2) Options:
  A) 0°
  B) 30°
  C) 45°
  D) 60°
  E) 90°
  Show Answer
  The correct answer is B .
• Question 1575: A block of aluminum is heated electrically by a 30 w heater if the temperature rises by 10°c in 5 minutes, the heat capacity of the aluminum is Options:
  A) 900 JK^-1
  B) 90 JK^-1
  C) 100 JK^-1
  D) 200 JK^-1
  Show Answer
  The correct answer is A .
• Question 1576: 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 1577:

  A man on a bench will exert the greatest pressure on the bench when he

  Options:
  A) lies flat on his back
  B) lies flat on his belly
  C) stands on both feet
  D) stands on the toes of one foot
  Show Answer
  The correct answer is D .
• Question 1578: 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 1579: A transistor is used in the amplification of signals because it Options:
  A) controls the flow of current
  B) consumes a lot of power
  C) allows doping
  D) contains electron and hole carriers
  Show Answer
  The correct answer is A .
• Question 1580: If a resistance is halved in value and the potential difference across it is tripled, then the ratio of the new current to the old one is Options:
  A) 1 : 6
  B) 1 : 3
  C) 2 : 1
  D) 6 : 1
  Show Answer
  The correct answer is D .