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 1191: A man wears convex lens glasses of focal length 40cm in order to correct his eye defect. instead of the optimum 25cm, his least distance of distinct vision is Options:
  A) 14cm
  B) 28cm
  C) 75cm
  D) 150cm
  Show Answer
  The correct answer is D .
• Question 1192: A ship travelling towards a cliff receives the echo of its whistle after 3.5 seconds. A short while later, it receives the echo after 2.5 seconds. If the speed of sound in air under the prevalling condition is 250ms ^-1, how much closer is the ship to the cliff? Options:
  A) 10m
  B) 125m
  C) 175m
  D) 350m
  E) 1,000m
  Show Answer
  The correct answer is B .
• Question 1193:

  The following are parts of the eye

  I. Retina

  II. Pupil

  III. Iris

  The correct equivalent in the camera in the same order are

  Options:
  A) Diaphragm, Aperture, film
  B) Aperture, Diaphragm, Film
  C) Film, Diaphragm, Aperture
  D) Film, Aperture, Diaphragm
  Show Answer
  The correct answer is D .
• Question 1194: In a resonance tube experiment, if the fundamental frequency of the vibrating air column is 280Hz, the frequency of the third overtone is Options:
  A) 70Hz
  B) 840Hz
  C) 1120Hz
  D) 1960Hz
  Show Answer
  The correct answer is D .
• Question 1195: The north pole of a magnet can never be separated from the south pole because of the property knowledge as? Options:
  A) magnetic octopole
  B) magnetic monopole
  C) magnetic dipole
  D) magnetic quadrupole
  Show Answer
  The correct answer is C .
• Question 1196:

  A narrow beam of white light can be split up into different colours by a glass prism. The correct explanation is that

  Options:
  A) white light Is an electromagnetic wave
  B) the prism has all the colours of the white light
  C) different colours of white light travel with different speeds in glass
  D) white light has undergone total Internal reflection in the prism
  Show Answer
  The correct answer is C .
• Question 1197:

  A reservoir is filled with liquid of density 2000 kgm${}^{-1}$. Calculate the depth at which the pressure in the liquid will be equal to 9100 Nm${}^{-2}$ (g = 10 ms${}^{-2}$)

  Options:
  A) 0.262 m
  B) 0.664 m
  C) 0.819 m
  D) 0.455 m
  Show Answer
  The correct answer is D .
• Question 1198:

  

  The diagram above shows two wave forms P and Q at a particular instant in time. the two waves will interface

  Options:
  A) destructively to produce a wave of larger amplitude
  B) destructively to produce a wave of smaller amplitude
  C) constructively to produce a wave of larger amplitude
  D) constructively to produce a wave of smaller amplitude
  Show Answer
  The correct answer is C .
• Question 1199:

  

  In the figure above, XY is of length 1m, The value of R at balance point Z is

  Options:
  A) 3.0Ω
  B) 13.3Ω
  C) 15.0Ω
  D) 30.0Ω
  Show Answer
  The correct answer is D .
• Question 1200: A semiconductor diode is used in rectifying alternating current into direct current mainly because it Options:
  A) allows current to flow in either direction
  B) is non-linear
  C) offers a high input resistance
  D) allows current to flow only in one direction
  Show Answer
  The correct answer is D .