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 1611: Electrons were discovered by Options:
  A) James Chadwick B.
  B) J.J Thompson
  C) Sir Isaac Newton
  D) Charles Newton
  Show Answer
  The correct answer is B .
• Question 1612: The energy stored in an inductor of inductance 5mH when a current of 6A flows through it is Options:
  A) 9.0 x 10^-3J
  B) 9.0 x 10^-2J
  C) 1.4 x 10^-2J
  D) 1.8 x 10^-3J
  Show Answer
  The correct answer is B .
• Question 1613: Calculate the specific latent heat of vaporization of steam of 1.13 x 106J pf heat energy is required to convert 15kg of it to water. Options:
  A) 7.53 x 105 Jkg${}^{-1}$
  B) 7.53 x 10-2Jkg${}^{-1}$
  C) 7.53 x 104Jkg${}^{-1}$
  D) 7.53 x 10-3Jkg${}^{-1}$
  Show Answer
  The correct answer is C .
• Question 1614: The force experienced by an object of mass 60.0kg in the moon's gravitational field is 1.002 x 10²N. What is the intensity of the gravitational field? Options:
  A) 0.60Nkg^-1
  B) 1.67Nkg^-1
  C) 6.12 x 10²Nkg^-1
  D) 9.81ms^-2
  Show Answer
  The correct answer is B .
• Question 1615:

  In an AC circuit, resonance occurs when the impedance of the circuit is:

  Options:
  A) Zero
  B) Maximum
  C) Equal to the capacitive reactance of the circuit
  D) Minimum
  Show Answer
  The correct answer is D .
• Question 1616: A catapult used to hold a stone of mass 500g is extended by 20cm with an applied force F. If the stone leaves with a velocity of 40m/s, the value of F is Options:
  A) 4.0 x 10²N
  B) 2.0 x 10³N
  C) 4.0 x 10³N
  D) 4.0 x 10⁴N
  Show Answer
  The correct answer is B .
• Question 1617: The battery connection that permits current to flow across a p-n junction is called? Options:
  A) reverse baised
  B) forward baised
  C) amplification.
  D) rectification
  Show Answer
  The correct answer is B .
• Question 1618:

  An electron in a hydrogen atom makes a transition from the ground level to the third level. If the energy at the ground level,calculate the energy at the third level.

  [h = 6.6 x 10^-34Js; f = 10¹⁵Hz]

  Options:
  A) 1.41eV
  B) 1.71eV
  C) 1.61eV
  D) 1.51eV
  Show Answer
  The correct answer is D .
• Question 1619:

  I. Jet propelled aircraft
  II. Rocket propulsion
  III. The recoil of a gun
  IV. A person walking

  Which of the above is based on Newton's third law of motion

  Options:
  A) I and II only
  B) I, II, III, and IV only
  C) I and III only
  D) I, II and III only
  Show Answer
  The correct answer is B .
• Question 1620:

  Which of the following instruments may be used to measure relative humidity?

  Options:
  A) Hydrometer
  B) Manometer
  C) Hygrometer
  D) Hypsometer
  Show Answer
  The correct answer is C .