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 1291: What is the length of liquid column in a barometer tube that would support an atmospheric pressure of 102000Nm^-2 if the density of the liquid is 2600kgm^-3? [g = 10ms^-2] Options:
  A) 0.75m
  B) 0.76m
  C) 3.92m
  D) 39.23m
  Show Answer
  The correct answer is C .
• Question 1292: Which of the following waves can propagate through a vacuum? Options:
  A) High velocity sound waves
  B) Ultrasonic waves
  C) Acoustic waves
  D) Infra-red waves
  Show Answer
  The correct answer is D .
• Question 1293: An alternating source is connected in series to a capacitor of capacity reactance ${10}^3\sqrt{3}$ and a resistor of resistance 10³ Ohms. The Impedance of the circuit is... Options:
  A) $2000\sqrt{3}$ Ohms
  B) 2000 Ohms
  C) $1000\sqrt{3}$ Ohms
  D) 1000 Ohms
  Show Answer
  The correct answer is B .
• Question 1294:

  Cathode rays are

  Options:
  A) High-energy electromagnetic waves
  B) protons
  C) neutrons
  D) streams of electrons
  Show Answer
  The correct answer is D .
• Question 1295: A ball of mass 0.1kg is thrown vertically upwards with a speed of 10ms^-1 from the top of a tower 10m high. Neglecting air resistance, its total energy just before hitting the ground is(take g = 10ms^-2) Options:
  A) 5 J
  B) 10 J
  C) 15 J
  D) 20 J
  Show Answer
  The correct answer is C .
• Question 1296: In the calibration of an ammeter using faraday's laws of electrolysis, the ammeter reading is kept constant at 1.2A. If 0.990g of copper is deposited in 40 minutes , the correction to be applied to the ammeter is Options:
  A) 0.03A
  B) 0.04A
  C) 0.05A
  D) 0.06A
  Show Answer
  The correct answer is C .
• Question 1297: If the angle of declination in a place is 10^oE, calculate the true geographic bearing if the compass reads N40^oE Options:
  A) N50^oE
  B) N40^oE
  C) N30^oE
  D) N25^oE
  Show Answer
  The correct answer is C .
• Question 1298:

  A 40KW electric cable was uses to transmit electricity through a resistor of resistance 2.00Ω at 800V. The power loss as internal energy is

  Options:
  A) 4.0 x 10²W
  B) 5.0 x 10²W
  C) 4.0 x 10³W
  D) 5.0 x 10³W
  Show Answer
  The correct answer is D .
• Question 1299: 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 1300:

  

  The diagram above represents the field pattern obtained by bringing the poles of two magnets together.The poles must be

  Options:
  A) S-S poles
  B) S-N poles
  C) N-S poles
  D) N-N poles
  Show Answer
  The correct answer is A .