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 411: When a telescope is in normal use, the final image is at Options:
  A) Infinity
  B) The focus
  C) The radius of curvature
  D) The near point
  Show Answer
  The correct answer is A .
• Question 412: A solid of weight 0.600N is totally immersed in oil and water respectively. If the upthrust of oil is 0.210N and the relative density of oil is 0.875. Find the upthrust in water. Options:
  A) 0.600N
  B) 0.360N
  C) 0.240N
  D) 0.180N
  Show Answer
  The correct answer is C .
• Question 413:

  A rope is being used to pull a mass of 10kg vertically upward. Determine the tension in the rope if, starting from rest, the mass acquires a velocity of 4ms^-1 in 8s [g = 10ms^-2]

  Options:
  A) 5N
  B) 50N
  C) 95N
  D) 105N
  Show Answer
  The correct answer is C .
• Question 414: In sunlight, a blue flower looks blue because we see the flower by the light it Options:
  A) recieves from our eye
  B) disperses
  C) absorbs
  D) refracts
  E) reflects
  Show Answer
  The correct answer is E .
• Question 415: Momentum and Kinetic energy are conserved in Options:
  A) Inelastic collision
  B) Elastic collision
  C) Explosion
  D) Spacecraft
  Show Answer
  The correct answer is B .
• Question 416: An object is placed directly below a glass block of thickness 3.0cm. Calculate the lateral displacement of the object if the refractive index of the glass is 1.5. Options:
  A) 1.0cm
  B) 1.5cm
  C) 2.0cm
  D) 2.5cm
  Show Answer
  The correct answer is A .
• Question 417: Four lenses are being considered for use as a microscope objective. Which of the following focal lengths is most suitable? Options:
  A) -5mm
  B) +5mm
  C) -5cm
  D) +5cm
  Show Answer
  The correct answer is B .
• Question 418:

  Which of the following instruments may be used to measure relative humidity?

  Options:
  A) Hydrometer
  B) Manometer
  C) Hygrometer
  D) Hypsometer
  Show Answer
  The correct answer is C .
• Question 419: A p-n junction diode is used as? Options:
  A) a rectifier in a d.c circuit
  B) an amplifier in d.c circuit
  C) an anplifier in an a.c circuit
  D) a rectifier in an a.c circuit
  Show Answer
  The correct answer is D .
• Question 420: The difference of potential between the terminals of cells is 2.2 volts. When a 4ohm resistor is connected across the terminals of this cells, the potential difference is 2 volts. What is the internal resistance of the cell? Options:
  A) 0.10 ohms
  B) 0.25ohms
  C) 0.40ohms
  D) 2.50ohms
  E) 4.00ohms
  Show Answer
  The correct answer is C .