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 311: Which of these statements are correct for the pressures in liquids? i. pressure in a liquid at a point acts equally in all directions. ii. pressure increases with depth. iii. pressure at a depth depends on the shape of the container. iv. pressure at the same depth in different liquids are proportional to the density at different liquids. Options:
  A) i, ii, iii only
  B) i, ii, iv only
  C) i, iii, iv only
  D) ii, iii, iv only
  Show Answer
  The correct answer is B .
• Question 312: When two mirrors are placed at an angle of 900 to each other, how many images will be formed when an object is placed in front of the mirrors Options:
  A) 5
  B) 4
  C) 3
  D) 2
  Show Answer
  The correct answer is C .
• Question 313:

  A bar magnet is divided into two pieces, which of the following statement is correct?

  Options:
  A) two new magnets are created
  B) the magnetic field of each separate piece becomes stronger
  C) the electric field is created
  D) the bar magnet is demagnetized
  Show Answer
  The correct answer is A .
• Question 314: Which of the following is NOT a vector quantity? Options:
  A) Force
  B) Altitude
  C) weight
  D) Displacement
  E) Acceleration
  Show Answer
  The correct answer is B .
• Question 315:

  The amount of energy required to change a kilogram of ice block into water without a change in temperature is?

  Options:
  A) specific latent heat of fusion of ice
  B) specific heat capacity of ice
  C) heat capacity of ice
  D) specific heat of vaporization of ice
  Show Answer
  The correct answer is A .
• Question 316: An element X of an atomic number 88 and mass number 226 decays to form an element Z by emitting two beta particles and an alpha particle. Z is represented by Options:
  A) ${}_{82}^{222}Z$
  B) ${}_{88}^{222}Z$
  C) ${}_{86}^{226}Z$
  D) ${}_{80}^{226}Z$
  Show Answer
  The correct answer is B .
• Question 317: Two liquids L₁ and L₂ are contained in a U - tube. The height and the density of L₁ are 8 cm and 10³ kgm^-3 respectively. If the density of L₂ is 800 kgm^-3, its height measured from the same level is Options:
  A) 8 cm
  B) 10 cm
  C) 16 cm
  D) 12 cm
  Show Answer
  The correct answer is B .
• Question 318:

  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 319: The mass of a stone is 15.0g when completely immersed in water and 10.0g when completely immersed in a liquid of relative density 2.0. The mass of the stone in air is Options:
  A) 5.0g
  B) 12.0g
  C) 20.0g
  D) 25.0g
  Show Answer
  The correct answer is C .
• Question 320: An object placed on the principle axis of a convex lens of focal length 10m produces a real image of double magnification. The image distance from the lens is Options:
  A) 30cm
  B) 25cm
  C) 20cm
  D) 15cm
  E) 10cm
  Show Answer
  The correct answer is A .