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 71:

  When a yellow card is observed through blue glass, the card would appear

  Options:
  A) black
  B) green
  C) red
  D) white
  Show Answer
  The correct answer is A .
• Question 72: In a common emitter configuration, the output voltage is through the Options:
  A) Resistor
  B) Base
  C) Collector
  D) Emitter
  Show Answer
  The correct answer is D .
• Question 73: The driving mirror of a car has a radius of curvature of 1m. A vehicle behind the car is 4m from the mirror. Find the image distance behind the mirror. Options:
  A) 8/7
  B) 4/9
  C) 9/2
  D) 4/7
  Show Answer
  The correct answer is B .
• Question 74: An object which is 3cm high is placed vertically 10cm in front of a concave mirror. If this object produces an image 40cm from the mirror, the height of the image is Options:
  A) 0.75cm
  B) 4.00cm
  C) 8.00cm
  D) 12.00cm
  Show Answer
  The correct answer is D .
• Question 75:

  "Sum of all forces acting on a body is zero." This condition represents equilibrium'

  Options:
  A) First condition
  B) Second condition
  C) Third condition
  D) Fourth condition
  Show Answer
  The correct answer is A .
• Question 76:

  In semi-conductor, the carriers of current at room temperature are

  Options:
  A) electrons only
  B) electrons and holes
  C) holes only
  D) electron and ions
  Show Answer
  The correct answer is B .
• Question 77: A voltage of 240V is connected to the primary coil of a the rating of the primary turns to the secondary turns if the voltage available at the secondary coil is 15V Options:
  A) 0.06
  B) 0.9
  C) 1.6
  D) 16
  E) 36
  Show Answer
  The correct answer is D .
• Question 78: The point beyond which a stretched spring does not return to its original length is called the Options:
  A) breaking point
  B) elastic limit
  C) spring constant
  D) elasticity point
  E) release point
  Show Answer
  The correct answer is B .
• Question 79: A platinum-resistance thermometer has a resistance of 59 at 0^oC and 9Ω at l00^oC. Assuming that resistance changes uniformly with temperature, calculate the resistance of the thermometer when the temperature is 45^oC Options:
  A) 13.9 Ω
  B) 8.9 Ω
  C) 6.8 Ω
  D) 3.2 Ω
  E) 1.8 Ω
  Show Answer
  The correct answer is C .
• Question 80: The tendon in a man's leg is 0.01m long. If a force of 5N stretches the tendon by 2.0 x 10^-5m, calculate the strain on the muscle. Options:
  A) 5 x 10⁶
  B) 5 x 10²
  C) 2 x 10^-3
  D) 2 x 10^-7
  Show Answer
  The correct answer is C .