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 2061: Which of the following is correct about an electric cell? Options:
  A) Primary cell produces a large current for a long time
  B) Secondary cell has a very high internal resistance
  C) Primary cell has a very low internal resistance
  D) Secondary cell has a very low internal resistance
  Show Answer
  The correct answer is D .
• Question 2062: An object placed at the bottom of a well full of clear water appears closer to the surface due to? Options:
  A) diffraction
  B) reflection
  C) refraction
  D) polarization
  Show Answer
  The correct answer is C .
• Question 2063: The net movement of solvent molecules from a region of high solvent potential to a region of lower solvent potential through a partially or semi permeable membrane is refer to as Options:
  A) Diffusion
  B) Osmosis
  C) Surface tension
  D) Cohesion
  Show Answer
  The correct answer is B .
• Question 2064: The energy stored in a capacitor of capacitance 5 μF is 40J. What is the voltage applied across its terminals? Options:
  A) 4V
  B) 8V
  C) 16V
  D) 200V
  E) 4000V
  Show Answer
  The correct answer is E .
• Question 2065: In A.C circuit theory, the root means square (r.m.s) current, I_rms and the peak (maximum)current I_o are related by Options:
  A) I_o = $\frac{I_{r}ms}{\sqrt{2}}$
  B) I_rms = $\frac{I_o}{\sqrt{2}}$
  C) I_rms = $\frac{\frac{I}{I_o}}{\sqrt{2}}$
  D) I_rms = $\frac{I_{r}ms}{\sqrt{2}}$
  Show Answer
  The correct answer is B .
• Question 2066:

  What effort will a machine of efficiency 90% apply to lift a load of 180N if its efforts arm is twice as long as its load arm?

  Options:
  A) 80N
  B) 90N
  C) 100N
  D) 120N
  Show Answer
  The correct answer is C .
• Question 2067: Radio waves have a velocity of 3 x 10⁸ms^-1. A radio station sends out a broadcast on a frequency of 800kHz. The wavelength of the broadcast is Options:
  A) 375.0m
  B) 267.0m
  C) 240.0m
  D) 37.5m
  E) 26.7m
  Show Answer
  The correct answer is A .
• Question 2068: Which of the following are the correct SI units of the quantities indicated? i.N(Force) II. Mn^-1 (Torque) iii. watt(Power) iv. kgms^-2 Options:
  A) i and ii only
  B) i, ii and iii only
  C) i, ii, and iv only
  D) i and iii only
  Show Answer
  The correct answer is D .
• Question 2069:
  

  From the diagram above, if the potential difference across the resistor, capacitor and inductor are 60V, 120V and 30V respectively, the effective potential difference is

  Options:
  A) 81
  B) 67
  C) 59
  D) 73
  Show Answer
  The correct answer is B .
• Question 2070: Which of the following units is equivalent to kgms^-1? Options:
  A) Ns^-1
  B) Nms^-1
  C) Ns
  D) Js^-1
  Show Answer
  The correct answer is C .