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 1101: Which of the following is stored by a dry Leclanche cell? Options:
  A) Electrical power
  B) Kinetic energy
  C) Electric current
  D) Chemical energy
  Show Answer
  The correct answer is D .
• Question 1102:

  

  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 1103:

  I. The frictional force is independent of the area of the surfaces in conduct

  II. The frictional force depends on the nature of the surfaces in contact

  III. The frictional force depends on the speed of sliding

  IV. The frictional force is directly proportional to the normal reaction.Which combination of the above is true of sliding friction?

  Options:
  A) I, III and IV
  B) I, II and IV
  C) I, II and III
  D) II, III and IV
  Show Answer
  The correct answer is B .
• Question 1104:

  A solid weighs10.00N in air,6N when forcefully immersed in water, and 7.0N when fully immersed in a liquid, X. Calculate the relative density of the liquid X.

  Options:
  A) $\frac{5}{3}$
  B) $\frac{4}{3}$
  C) $\frac{3}{4}$
  D) $\frac{7}{10}$
  Show Answer
  The correct answer is C .
• Question 1105: Light of wavelength 5000 x 10^-8cm travels in free space with a velocity of 3 x 10⁸ms^-1. What is its wavelength in glass of refractive index 1.5? Options:
  A) 3333 x 10^-8cm
  B) 5000 x 10^-8cm
  C) 6666 x10^-8cm
  D) 750010^-8cm
  Show Answer
  The correct answer is A .
• Question 1106:

  Arrange the following in the order of their increasing frequency.I. Visible light

  II. Gamma rays

  III. Radio waves

  IV. Infra-red radiation

  V. Ultra-violet radiation

  Options:
  A) I, II, III, IV, V
  B) II, III, IV, V, I
  C) III, IV, V, I, II
  D) IV, III, I. V, II
  E) III, IV, I,V, II
  Show Answer
  The correct answer is E .
• Question 1107: The resistances of platinum wire at the ice and steam points are 0.75 ohm and 1.05 ohm respectively. Determine the temperature at which the resistance of the wire is 0.90 ohm Options:
  A) 43.0^oC
  B) 50.0^oC
  C) 69.9^oC
  D) 87.0^oC
  Show Answer
  The correct answer is B .
• Question 1108: A radioactive substance has a half-life of 3 minutes. After 9 minutes, the count rate was observed to be 200. What was the count rate at zero time? Options:
  A) 200
  B) 1200
  C) 1600
  D) 2400
  E) 4800
  Show Answer
  The correct answer is C .
• Question 1109:

  

  The figure above shows three capacitors, 2μF, 3μF and 6μF connected in series. If the p.d across the system is 12V, the p.d, across the 6μF capacitor is

  Options:
  A) 4V
  B) 12V
  C) 2V
  D) 6V
  Show Answer
  The correct answer is C .
• Question 1110: In a common emitter configuration, the output voltage is through the Options:
  A) Resistor
  B) Base
  C) Collector
  D) Emitter
  Show Answer
  The correct answer is D .