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 2501: Which of the following instruments can be used to measure current in an a.c circuit? Options:
  A) Hot wire ammeter
  B) Moving coil ammeter
  C) Tangent galvanometer
  D) Moving coil galvanometer
  Show Answer
  The correct answer is D .
• Question 2502: The distance between two successive crests of a water wave is 0.5m. If a particle on the surface of the water wave makes two complete vertical oscillations in 1s, calculate the speed of the wave. Options:
  A) 0.25ms^-1
  B) 0.50ms^-1
  C) 1.00ms^-1
  D) 2.00ms^-1
  E) 4.00ms^-1
  Show Answer
  The correct answer is C .
• Question 2503: 1kg of copper is transferred quickly from boiling water to a block of ice. Calculate the mass of ice melted, neglecting heat loss. [specific heat capacity of copper 400Jkg^-1K^-1 and latent heat of fusion of ice 333 x 10³Jkg^-1] Options:
  A) 60g
  B) 67g
  C) 120g
  D) 133g
  Show Answer
  The correct answer is C .
• Question 2504: Natural radioactivity is the random spontaneous disintegration of the nuclei of heavy isotopes of certain elements with the emission of Options:
  A) $\alpha$, X, and $\beta$
  B) $\alpha$, $\beta$ and $\gamma$-rays
  C) X, $\alpha$, $\gamma$-ray
  D) $\alpha$, $\beta$ and X-rays
  Show Answer
  The correct answer is B .
• Question 2505: In photoelectric effect, electrons will leave the metal surface when illuminated by light of appropriate frequency if the photon energy is Options:
  A) greater than the work function
  B) less than the work function
  C) equal to the work function
  D) equal to the maximium kinetic energy of the electron
  Show Answer
  The correct answer is A .
• Question 2506: A cell of e.m.f 2V and internal resistance 1$\mathrm{\Omega }$ supplies a current of 0.5 amps to a resistance whose value is Options:
  A) 0.5$\mathrm{\Omega }$
  B) 1$\mathrm{\Omega }$
  C) 2$\mathrm{\Omega }$
  D) 2.5$\mathrm{\Omega }$
  E) 3$\mathrm{\Omega }$
  Show Answer
  The correct answer is E .
• Question 2507: The following types of waves are transverse EXCEPT Options:
  A) light waves
  B) radio waves
  C) sound waves
  D) surface waves on water
  E) X-rays
  Show Answer
  The correct answer is C .
• Question 2508: A conductor has a diameter of 1.00mm and length of 2.00m. If the resistance of the material is 0.1Ω, the resistivity is Options:
  A) 2.55 * 10⁵ Ωm
  B) 2.55 * 10³ Ωm
  C) 3.93 * 10^-6 Ωm
  D) 3.93 * 10^-8 Ωm
  Show Answer
  The correct answer is D .
• Question 2509:

  In a thermonuclear reaction, the total initial mass is 5.02 x 10^-27kg and the total final mass is 0.01 x 10^-27kg. The energy released in the process is

  [c = 3.0 x 10⁸ms^-1]

  Options:
  A) 9.0 x 10^-13J
  B) 9.0 x 10^-12J
  C) 9.0 x 10^-11J
  D) 9.0 x 10^-10J
  Show Answer
  The correct answer is A .
• Question 2510: A plane progressive wave is represented by the equation y = 0.2sin (200πt - 0.5.x) where x and y are measured in cm and t in s. What is the frequency of the wave? Options:
  A) 0.5Hz
  B) 4.0Hz
  C) 10.0Hz
  D) 100.0Hz
  E) 200.0Hz
  Show Answer
  The correct answer is D .