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 1431: Heat may be transferred by conduction, convection and radiation. By which of these methods does heat travel through vacuum? Options:
  A) conduction only
  B) convection only
  C) radiation only
  D) non of these methods
  Show Answer
  The correct answer is C .
• Question 1432:

  Arrange the following in the order of their increasing frequency.I. Visible light

  II. Gamma rays

  III. Radio waves

  IV. Infra-red radiation

  V. Ultra-violet radiation

  Options:
  A) I, II, III, IV, V
  B) II, III, IV, V, I
  C) III, IV, V, I, II
  D) IV, III, I. V, II
  E) III, IV, I,V, II
  Show Answer
  The correct answer is E .
• Question 1433: The lack of power of accommodation which is mainly due to the hardening of the eye lens and is usual with onset of old age is called? Options:
  A) myopia
  B) hypermyopia
  C) presbyopia
  D) astigmatism
  E) eye ring
  Show Answer
  The correct answer is C .
• Question 1434: 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 1435: A wave has a frequency of 2Hz and a wavelength of 30cm. The velocity of the wave is Options:
  A) 60.0ms^-1
  B) 6.0ms^-1
  C) 1.5ms^-1
  D) 0.6ms^-1
  Show Answer
  The correct answer is D .
• Question 1436: A member of the crew of a SPACESHIP experiences weightlessness in a space when they Options:
  A) Fall freely from the earth’s gravitational field
  B) Is walking on the planet
  C) In between the sun and the earth
  D) Holding anything in space is negative
  Show Answer
  The correct answer is A .
• Question 1437:

  118.8cm² surface of the copper cathode of a voltameter is to be coated with 10^-6m thick copper of density 9 x 10³kgm^-3. How long will the process run with 10A constant current?

  [3.3 x 10^-7kgC^-1]

  Options:
  A) 5.4 min
  B) 10.8 min
  C) 15.0 min
  D) 20.0 min
  Show Answer
  The correct answer is A .
• Question 1438: 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 1439: Heat was supplied to a block of ice at 0^oC until half of it melted. Which of the following statements is true? Options:
  A) the temperature rises and the ice expand
  B) the temperature remains constant and the volume of the ice decreases
  C) the ice gives out heat as it melts and the temperature decreases
  D) the mass remains constant and the temperature increases
  E) the temperature decreases because some heat is lost
  Show Answer
  The correct answer is B .
• Question 1440: A machine requires 1000J of work to raise a load of 500N through a vertical distance of 1.5m. Calculate the efficiency of the Options:
  A) 80%
  B) 75%
  C) 50%
  D) 33%
  Show Answer
  The correct answer is B .