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 2101:

  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) 350m
  C) 175m
  D) 125m
  Show Answer
  The correct answer is D .
• Question 2102: When the tension in a sonometer wire is doubled, the ratio of the new frequency to the initial frequency is Options:
  A) $\frac{1}{\sqrt{2}}$
  B) $\frac{1}{2}$
  C) $\sqrt{2}$
  D) 2
  Show Answer
  The correct answer is C .
• Question 2103: A car moves with an initial velocity of 25 ms^-1 and reaches a velocity of 45 ms^-1 in 10s. what is the acceleration of the car? Options:
  A) 2 ms^-2
  B) 5 ms^-2
  C) 20 ms^-2
  D) 25 ms^-2
  Show Answer
  The correct answer is A .
• Question 2104: A body of mass 10kg rests on a rough inclined plane whose angle of tilt $\theta$ is variable. $\theta$ is gradually increased until the body starts to slide down the plane at 30^o. The coefficient of limiting friction between the body and the plane Options:
  A) 0.30
  B) 0.50
  C) 0.58
  D) 0.87
  Show Answer
  The correct answer is C .
• Question 2105: Which of the following is NOT a force? Options:
  A) Friction
  B) Tension
  C) Upthrust
  D) Weight
  E) Impulse
  Show Answer
  The correct answer is E .
• Question 2106: Heat is supplied uniformly at the rate of 100W to 1.0 x 10^-2kg of a liquid for 20 seconds. If the temperature of the liquid rises by 5^oC, then the specific heat capacity of the liquid is Options:
  A) 2.0 x 10²Jkg^-1k^-1
  B) 2.0 x 10²Jkg^-1
  C) 4.0 x 10⁴Jkg^-1k^-1
  D) 4.0 x 10⁴kg^-1
  E) 8.4 x 10³Jkg^-1k^-1
  Show Answer
  The correct answer is C .
• Question 2107:

  

  The internal resistance of each of the cells E1 and E2 Shown in the figure above is 2 Ohm. Calculate the total current in the circuit

  Options:
  A) 0.80A
  B) 0.50A
  C) 0.40A
  D) 0.004A
  Show Answer
  The correct answer is C .
• Question 2108: Which of the following statements give the TRUE difference between evaporation and boiling? i. Evaporation occurs at all temperatures while boiling occurs at a fixed temperature for a given pressure. ii. Evaporation is a surface phenomenon while boiling is an interior phenomenon. iii. Evaporation is affected by surface area while boiling is not. Options:
  A) i and ii only
  B) i and iii only
  C) ii and iii only
  D) i, ii, iii.
  Show Answer
  The correct answer is D .
• Question 2109:

  Which of the following equations is the correct definition of the reactance of an indicator L?

  Options:
  A) Reactance = (Amplitude of voltage) $÷$ (Amplitude of current)
  B) Reactance = (Amplitude of voltage) x (Amplitude of current)
  C) Reactance = (Amplitude of current)${}^2$ $÷$ (Amplitude of voltage)
  D) Reactance = (Amplitude of current)${}^2$ $÷$ (Amplitude of voltage)$\frac{1}{2}$
  Show Answer
  The correct answer is A .
• Question 2110: Light of frequency 6.0 x 10¹⁴ Hz travelling in air is transmitted through glass or refractive index 1.5. Calculate the frequency of the light in the glass Options:
  A) 4.0 x 10¹⁴Hz
  B) 6.0 x 10¹⁴Hz
  C) 7.5 x 10¹⁴Hz
  D) 9.0 x 10¹⁴Hz
  Show Answer
  The correct answer is A .