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 791: A quantity of ice at 10^oC is heated until the temperature of the heating vessel is 90^oC. Which of the following constants is NOT required to determine the quantity of heat supplied to the vessel? Options:
  A) specific heat capacity of ice
  B) specific heat capacity of water
  C) specific latent heat of fusion
  D) specific latent heat of vaporization
  Show Answer
  The correct answer is D .
• Question 792: The energy in the nucleus of atoms produce heat which can be used to generate Options:
  A) Kinetic energy
  B) Mechanical energy
  C) Electrical energy
  D) Potential energy
  Show Answer
  The correct answer is A .
• Question 793:

  A force, 10N, drags a mass 10kg on a horizontal table with an acceleration of 0.2ms. If the acceleration due to gravity is 10ms^-1, the coefficient of friction between the moving mass and the table is

  Options:
  A) 0.02
  B) 0.08
  C) 0.20
  D) 0.80
  Show Answer
  The correct answer is B .
• Question 794: A cell of internal resistance 2 ohms supplies current to a 6 ohms resistor. The efficiency of the cell is Options:
  A) 12.0%
  B) 25.0%
  C) 33.3%
  D) 75.0%
  Show Answer
  The correct answer is D .
• Question 795: The thermometric property of a constant volume thermometer is? Options:
  A) change in volume
  B) differential expanssion
  C) change in pressure
  D) change in length
  Show Answer
  The correct answer is C .
• Question 796:

  A certain radioactive source emits radiation that was found to be deflected by both magneticand electric fields. The radiation is?

  Options:
  A) beta rays
  B) gamma rays
  C) x-rays
  D) ultra-violet rays
  Show Answer
  The correct answer is A .
• Question 797: A cell of internal resistance 0.01Ω can be measured accurately using the Options:
  A) Ohm meter
  B) metre bridge
  C) potentiometer
  D) electroscope
  Show Answer
  The correct answer is C .
• Question 798: The general gas law can be written as Options:
  A) PV ÷ T = a constant
  B) PV = a constant
  C) v/t = a constant
  D) p/T = a constant
  Show Answer
  The correct answer is A .
• Question 799:

  A convex mirror is used as a driving mirror because
  i. its image is erect.
  ii. it has a large field of view.
  iii. it has a long focal length.

  Identify the CORRECT statement(s)

  Options:
  A) i andiii only
  B) i and ii only
  C) ii and iii only
  D) i, ii, and iii only
  E) i only
  Show Answer
  The correct answer is B .
• Question 800:

  A single force which produces the same effect as a set of forces acting together at a point is known as the

  Options:
  A) component
  B) equilibrant
  C) resultant
  D) resistant
  Show Answer
  The correct answer is C .