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 41: The focal length of a concave mirror is 2.0cm. If an object is placed 8.0cm from it, the image is at Options:
  A) 2.7m
  B) 2.0m
  C) 2.3m
  D) 2.5m
  Show Answer
  The correct answer is A .
• Question 42: The eyeball consists of a round tough white skin called Options:
  A) Sclerotic
  B) Choroid coal
  C) Optical fiber
  D) Accommodation
  Show Answer
  The correct answer is A .
• Question 43:

  Which of the following is a type of incandescent light source?

  Options:
  A) Fluorescent lamp
  B) LED lamp
  C) Tungsten filament lamp
  D) Neon lamp
  Show Answer
  The correct answer is C .
• Question 44: Which of the following statements is NOT true of the image in a plane mirror? The image is Options:
  A) the same size as the object
  B) laterally inverted
  C) virtual
  D) magnified
  E) the same distance behind the mirror as the object is in front
  Show Answer
  The correct answer is D .
• Question 45: A cube of sides 0.1m hangs freely from a string. What is the upthrust on the cube when totally immersed in water? [density of water is 1000kgm^-2, g = 10ms^-2] Options:
  A) 1000 N
  B) 700 N
  C) 110 N
  D) 10 N
  Show Answer
  The correct answer is D .
• Question 46: What is the acceleration due to gravity 'g' on the moon, if g is 10^-2 on the earth? Options:
  A) 0. 10 ms^-2
  B) 0.74ms^-2
  C) 1.6ms^-2
  D) 10.00ms^-2
  Show Answer
  The correct answer is C .
• Question 47: The terminal voltage of a battery is 4.0V when supplying a current of 2.0A, and 2.0V when supplying a current of 3.0A. The internal resistance of the battery is Options:
  A) 0.5 $\mathrm{\Omega }$
  B) 1.0$\mathrm{\Omega }$
  C) 2.0$\mathrm{\Omega }$
  D) 4.0$\mathrm{\Omega }$
  Show Answer
  The correct answer is C .
• Question 48: A boy observes a piece of stone at the bottom of a river 6.0m deep. If he looks from the surface of the river, what is the apparent distance of the stone from him? [Refractive Index of Water = 4/3] Options:
  A) 8.0m
  B) 5.5m
  C) 5.0m
  D) 4.5m
  Show Answer
  The correct answer is D .
• Question 49:

  The pitch of a screw jack is 0.45cm and the arm is 60cm long. If the efficiency of the Jack is 75/π %, calculate the mechanical advantage.

  Options:
  A) 400
  B) 300
  C) 200
  D) 150
  Show Answer
  The correct answer is C .
• Question 50: High Tension(H.T.) transmission means Options:
  A) to transmit a given amount of power, the tension in the conducting wire must be high
  B) heat is not lost when current is passed through a conductor
  C) heat is gained when a given power is transmitted
  D) a big transformer is required to transmit power
  E) trasmission of power at low current and high voltage
  Show Answer
  The correct answer is E .