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 1361:

  Water and Kerosine are drawn respectively into the two limbs of a Hare's apparatus. The destiny of water is 1.0gcm${}^{-3}$ and the density of kerosine is 0.80gcm${}^{-3}$. If the height of the water column is 20.0cm, calculate the height of the kerosine column.

  Options:
  A) 1.6cm
  B) 16.0cm
  C) 20.0cm
  D) 25.0cm
  Show Answer
  The correct answer is D .
• Question 1362:

  The amount of heat needed to raise the temperature of 10kg of Copper by 1K is its

  Options:
  A) specific heat capacity
  B) latent heat
  C) heat capacity
  D) internal energy
  Show Answer
  The correct answer is A .
• Question 1363:

  

  A particle is injected perpendicularly into an electric field, it travels along a curved path as depicted in the image above,the particle is

  Options:
  A) gamma ray
  B) electron
  C) neutron
  D) proton
  Show Answer
  The correct answer is B .
• Question 1364:

  A copper rod, 5m long when heated through 20c, expands by 1mm. If a second copper rod, 2.5m long is heated through 5c, by how much will it expand?

  Options:
  A) 4mm
  B) 2mm
  C) 0.25mm
  D) 0.12mm
  Show Answer
  The correct answer is B .
• Question 1365: A light of energy 5eV falls on a metal and the electrons with a maximum kinetic energy of 2eV are ejected. The work function of the metal is Options:
  A) 0.4eV
  B) 2.5eV
  C) 3.0eV
  D) 7.0eV
  Show Answer
  The correct answer is C .
• Question 1366: The inner diameter of a test tube can be measured accurately using a Options:
  A) micrometer screw guage
  B) pair of dividers
  C) metre rule
  D) pair of vernier calipers
  Show Answer
  The correct answer is D .
• Question 1367:

  A magnetic needle is suspended first at the earth's north magnetic pole and then at a point on the magnetic equator. The respective angles between the needle and the horizontal are

  Options:
  A) 0${}^o$ and 0${}^o$
  B) 60${}^o$ and 60${}^o$
  C) 90${}^o$ and 90${}^o$
  D) 90${}^o$ and 0${}^o$
  Show Answer
  The correct answer is D .
• Question 1368: A hydrometer is an instrument for measuring the Options:
  A) depth of water in a vessel
  B) relative density of a liquid by the method of flotation
  C) relative dendity of a liquid by finding the apparent loss in weight
  D) relative humidity of the air
  E) atmospheric pressure when the air is humid
  Show Answer
  The correct answer is B .
• Question 1369: An electron makes a transition from a certain energy level E_k to the ground state E₀. If the frequency of emission is 8.0 x 10¹⁴Hz The energy emitted is Options:
  A) 8.25 x 10^-19J
  B) 5.28 x 10^-19J
  C) 5.28 x 10¹⁹J
  D) 8.25 x 10¹⁹J
  Show Answer
  The correct answer is B .
• Question 1370:

  

  The figure above shows a uniform wood of weight 200N and length 50m. It is pivoted at one end and suspended by a cord at the other end at an angle of 30 degrees to the wood. Calculate the tension in the cord if the wood is horizontal.

  Options:
  A) 10N
  B) 20N
  C) 100N
  D) 200N
  Show Answer
  The correct answer is D .