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 61: 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 62: When white light is dispersed by a spectrometer, the component having the shortest wavelength is Options:
  A) orange
  B) green
  C) violet
  D) red
  Show Answer
  The correct answer is C .
• Question 63: Which of the following statements is NOT true of the image in a plane mirror? The image is Options:
  A) the same size as the object
  B) laterally inverted
  C) virtual
  D) magnified
  E) the same distance behind the mirror as the object is in front
  Show Answer
  The correct answer is D .
• Question 64:

  Aluminium is sometimes used as the leaf of an electroscope because it

  Options:
  A) is a light material
  B) is a good conductor
  C) is a good insulator
  D) can be converted into thin sheets
  Show Answer
  The correct answer is D .
• Question 65:

  The velocities of light in air and glass are 3.0 x 10${}^8$ms${}^{-1}$ and 2.0 x 10${}^8$ms${}^{-1}$ respectively. If the angle of refraction is 30º, the sine of the angle of incidence is?

  Options:
  A) 0.33
  B) 0.50
  C) 0.67
  D) 0.75
  Show Answer
  The correct answer is D .
• Question 66:

  

  What is the resultant capacitance of the circuit?

  Options:
  A) 1.5µF
  B) 18.0µF
  C) 6.0µF
  D) 6.8µF
  E) 8.83µF
  Show Answer
  The correct answer is A .
• Question 67: The amount of heat needed to raise the temperature of 10kg of copper by 1k is its Options:
  A) specific heat capacity
  B) heat capacity
  C) latent heat
  D) internal energy
  Show Answer
  The correct answer is B .
• Question 68:

  One newton × One meter equals?

  Options:
  A) One water
  B) One Joule
  C) One ampere
  D) One kilogram
  Show Answer
  The correct answer is B .
• Question 69:

  

  In the figure above, the work done by the force of 100N inclined at an angle of 60^o to the object dragged horizontally to a distance of 8m is

  Options:
  A) 800J
  B) 600J
  C) 100J
  D) 400J
  Show Answer
  The correct answer is D .
• Question 70: Which of the following assumptions is made in a simple pendulum experiment? the Options:
  A) suspending string is inextensible
  B) bob has a finite size
  C) bob has a definite mass
  D) initial angle of oscillation must be large
  Show Answer
  The correct answer is A .