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 1961: Which of the following electromagnetic waves has the highest frequency? Options:
  A) utra - violet rays
  B) radio waves
  C) x - rays
  D) infrared - rays
  Show Answer
  The correct answer is C .
• Question 1962: The quantity (timbre) of sound depends on Options:
  A) amplitude
  B) frequency
  C) harmonics
  D) velocity
  E) wavelength
  Show Answer
  The correct answer is C .
• Question 1963: A mass of gas at 7^oC and 70cm of mercury has a volume of 1200cm³. Determine its volume at 27^oC and pressure of 75cm of mercury. Options:
  A) 1200cm³
  B) 1378cm³
  C) 4320cm³
  D) 4629cm³
  Show Answer
  The correct answer is A .
• Question 1964:

  The graph of pressure (P) against the reciprocal of the volume (I/V) in Boyles's law is a?

  Options:
  A) hyperbola
  B) parabola
  C) curve
  D) straight line
  Show Answer
  The correct answer is D .
• Question 1965:

  When water is boiling, it

  Options:
  A) gets hotter
  B) increase is mass
  C) decreases in mass
  D) changes to steam
  Show Answer
  The correct answer is D .
• Question 1966: Which of the following has no effect on radiation? Options:
  A) nature of surface
  B) density
  C) surface area
  D) temperature
  Show Answer
  The correct answer is B .
• Question 1967:

  

  In the curve above, PQRST represents an alternating voltage of frequency 50Hz. The time interval between points P and R on the graph is

  Options:
  A) 25s
  B) 1/50s
  C) 1/100s
  D) 1/200s
  Show Answer
  The correct answer is C .
• Question 1968: A radioactive substance has a half-life of 20 days what fraction the original radiation nuclei will remain after 80 days? Options:
  A) (1)/32
  B) (1)/16
  C) (1)/ 8
  D) (1)/4
  Show Answer
  The correct answer is B .
• Question 1969:
  

  On a particular hot day, the temperature is 40°C and the partial pressure of water vapor in the air is 38.8 mmHg. What is the relative humidity?

  Options:
  A) 70
  B) 62
  C) 80
  D) 42
  Show Answer
  The correct answer is A .
• Question 1970:

  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 .