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 2831: Which of the following quantities are scalars? i. Electrical potential ii. Torque iii. Momentum iv. Kinetic energy Options:
  A) ii and iii only
  B) i and ii only
  C) iii and iv only
  D) i and iv only
  Show Answer
  The correct answer is D .
• Question 2832: Which of the following expressions gives the linear magnification produced by a concave mirror of radius of curvature r, if U and V are the object and image distances respectively? Options:
  A) $\frac{V}{r}$ - 1
  B) $\frac{2V}{r}$ - 1
  C) $\frac{U}{r}$ - 1
  D) $\frac{2U}{r}$ - 1
  Show Answer
  The correct answer is D .
• Question 2833: Which of the following statements about water is NOT correct? Options:
  A) Pure water freezes at 0°C under normal pressure
  B) The volume of a given mass of water at 0° is less than its volume at 4°C
  C) Water boils at a definite temperature
  D) Water evaporates at all temperatures
  E) Water has its maximum density at 4°C
  Show Answer
  The correct answer is D .
• Question 2834: An observer with normal eyes views an object with magnifying glass of focal length 5 cm. the angular magnification is?
  [least distance of distinct vision D = 25 cm] Options:
  A) -6
  B) -5
  C) 5
  D) 6
  Show Answer
  The correct answer is A .
• Question 2835: When very hot water is poured into a thin-walled glass container, it is less likely to break because Options:
  A) all parts of the container got heated-uniformly
  B) glass can withstand a very high temperature
  C) the molecules of glass are too far apart to cause breakages of the container
  D) the outer part of the container is cooler than the inner part
  E) thin glass does not expand fast
  Show Answer
  The correct answer is A .
• Question 2836:

  One of the following readings represents the measurement of thelength of a metal rod using vernier callipers. Taking the reading accuracy into consideration, the most likely one is

  Options:
  A) 5.16cm
  B) 5.165cm
  C) 5.0cm
  D) 5.160cm
  Show Answer
  The correct answer is A .
• Question 2837:

  A travelling wave of amplitude 0.80 m has a frequency of 16 Hz and a wave speed of 20 $ms-1$

  Calculate the wave number of the wave.

  Options:
  A) 3
  B) 4
  C) 5
  D) 2
  Show Answer
  The correct answer is C .
• Question 2838: A 12V battery has an internal resistance of 0.5W.If a cable of 1.0W resistance is connected across the two terminals of the battery, the current drawn from the battery is Options:
  A) 16.0A
  B) 8.0A
  C) 0.8A
  D) 0.4A
  Show Answer
  The correct answer is B .