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 1761: A certain far - sighted person cannot see object that are closer to the eye than 50 cm clearly. Determine the power of the converging lens which will enable him to see at 25 cm Options:
  A) 0.06 D
  B) 0.02 D
  C) 0.03 D
  D) 0.04 D
  E) no option is correct
  Show Answer
  The correct answer is E .
• Question 1762: What is the cost of running five 50W lamps and four 100W lamps for 10 hours if electrical energy costs 2 kobo per kWh? Options:
  A) N0.65
  B) N0.13
  C) N3.90
  D) N39.00
  E) N234.00
  Show Answer
  The correct answer is B .
• Question 1763: A projectile attains its maximum height when the angle of projection is Options:
  A) 30°
  B) 45°
  C) 60°
  D) 75°
  E) 90°
  Show Answer
  The correct answer is B .
• Question 1764: Calculate the length which corresponds to a temperature of 20^oC if the ice and steam points of an unguarded thermometer are 400 mm apart Options:
  A) 20mm
  B) 30mm
  C) 60mm
  D) 80mm
  Show Answer
  The correct answer is D .
• Question 1765: When the r.m.s value of a source of electricity supply is given as 240v, it means that the peak value of the supply is Options:
  A) 240v
  B) 340v
  C) 480v
  D) 57600v
  Show Answer
  The correct answer is B .
• Question 1766: The most suitable cell used for short interval switches in electric bells is a Options:
  A) lead- acid accumulator
  B) Daniel cell
  C) Leclanche cell
  D) nickel iron accumulator
  Show Answer
  The correct answer is C .
• Question 1767: Total internal reflection occurs when light moves from Options:
  A) a dense medium to a less dense medium
  B) air to water
  C) water to glass
  D) a less dense to a dense medium
  Show Answer
  The correct answer is A .
• Question 1768: If the distance between two stationary charged particle is doubled, the magnitude of the electro-static force between them will be Options:
  A) doubled
  B) halved
  C) a quarter of its former value
  D) unchanged
  E) four times the original value
  Show Answer
  The correct answer is C .
• Question 1769: Cathode rays are Options:
  A) high-energy electromagnetic waves
  B) protons
  C) streams of electrons
  D) neutrons
  E) radio waves
  Show Answer
  The correct answer is C .
• Question 1770: An object is weighted at different locations on the earth. What will be the right observation? Options:
  A) Both the mass and weight are constant
  B) Both the mass and weight vary
  C) the mass is constant while the weight varies
  D) the weight is constant while the mass varies
  Show Answer
  The correct answer is C .