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 2441:
  

  Name the type of equilibrium for each position of the ball

  Options:
  A) A - unstable, B - neutral, C - stable
  B) A - stable, B - neutral, C - unstable
  C) A - stable, B - unstable, C - neutral
  D) A - unstable, B - stable, C - neutral
  Show Answer
  The correct answer is D .
• Question 2442:

  I. Coherence

  II. Same frequency

  III. Same wavelength

  IV. Same IntensityWhich of the conditions above are necessary to produce interference fringes?

  Options:
  A) I and III
  B) I, II and IV
  C) I, II and III
  D) II and III
  Show Answer
  The correct answer is C .
• Question 2443: A structural engineer stood on a top of a building releasing a light and heavy object to the ground which of the following statement is true?(Neglect Air Resistance) Options:
  A) Bothe light and heavy subject reach the ground at the same time
  B) he light object get to the ground first before the heavy object
  C) he heavy object to the ground first before the light object
  D) None get to the ground first
  Show Answer
  The correct answer is A .
• Question 2444: Which type of radiation does not NOT originate within the nucleus? Options:
  A) alpha
  B) beta
  C) gamma
  D) neutron
  E) x-rays
  Show Answer
  The correct answer is E .
• Question 2445:

  A source of sound produces waves in air of wavelength1.65m. If the speed of soundin air is 330ms${}^{-1}$, the period of vibration in air is?

  Options:
  A) 200
  B) 0.005
  C) 0.5
  D) 0.02
  Show Answer
  The correct answer is B .
• Question 2446: In sunlight, a blue flower looks blue because we see the flower by the light it Options:
  A) recieves from our eye
  B) disperses
  C) absorbs
  D) refracts
  E) reflects
  Show Answer
  The correct answer is E .
• Question 2447:

  A piece of substance of specific heatcapacity 450Jkg${}^{-1}$k${}^1$ falls through a vertical distance of 20m from rest. Calculate the rise in temperature of the substance on hitting the ground when all its energies are converted into heat. [g = 10ms${}^{-2}$]

  Options:
  A) $\frac{2}{9}$ºC
  B) $\frac{4}{9}$ºC
  C) $\frac{9}{2}$ºC
  D) $\frac{9}{4}$ºC
  Show Answer
  The correct answer is B .
• Question 2448: Calculate the escape velocity of a satellite launched from the earth's surface if the radius of the earth is 6.4x10⁶m Options:
  A) 25.3kms^-1
  B) 4.2kms^-1
  C) 4.0kms^-1
  D) 11.3kms^-1
  Show Answer
  The correct answer is D .
• Question 2449: Electric charges on the surface of a conductor would be most evenly distributed if the shape of the conductor is Options:
  A) conical
  B) cubical
  C) cylindrical
  D) parabolic
  E) spherical
  Show Answer
  The correct answer is C .
• Question 2450: The silvered walls of a vacuum flask minimise loss of heat due to Options:
  A) conduction and convection
  B) conduction only
  C) convection and radiation
  D) convection only
  E) radiation only
  Show Answer
  The correct answer is E .