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 2081:

  

  The net capacitance of the circuit shown above is

  Options:
  A) 8.0µF
  B) 6.0µF
  C) 4.0µF
  D) 2.0µF
  Show Answer
  The correct answer is D .
• Question 2082:

  A pool of water appears to be 1.00m deep when viewed vertically from above. What is the actual depth of the pool?

  [Refractive index of water = 1.33]

  Options:
  A) 13.300m
  B) 0.750m
  C) 1.013m
  D) 1.330m
  Show Answer
  The correct answer is D .
• Question 2083: A lamp is rated 240V, 60W. The resistance of the filament is Options:
  A) 960$\mathrm{\Omega }$
  B) 16$\mathrm{\Omega }$
  C) 15$\mathrm{\Omega }$
  D) 4$\mathrm{\Omega }$
  Show Answer
  The correct answer is A .
• Question 2084: A stream is flowing at 0.75ms^-1 and a boat heading perpendicular for the stream landed at the opposite bank at an angle of 30°. Calculate the velocity of the boat. Options:
  A) 1.50ms^-1
  B) 1.00ms^-1
  C) 0.86ms^-1
  D) 0.65ms^-1
  Show Answer
  The correct answer is C .
• Question 2085: What is the approximate critical angle for total internal reflection for diamond if the refractive index of diamond is 2.42? Options:
  A) 21^o
  B) 22^o
  C) 23^o
  D) 24^o
  Show Answer
  The correct answer is D .
• Question 2086:

  A positively charged rod X is brought near an uncharged metal sphere Y and is then touched by a finger with X still in place. When the finger is removed, the result is that Y has

  Options:
  A) no charge and a zero potential
  B) a positive charge and a zero potential
  C) a negative charge and a positive potential
  D) a negative charge and a negative potential
  Show Answer
  The correct answer is D .
• Question 2087: A spring of force constant 500 NM^-1 is compressed such that its length shortens by 5cm. The energy stored in the spring is? Options:
  A) 0.625 J
  B) 6.250 J
  C) 62.500 J
  D) 625.000 J
  Show Answer
  The correct answer is A .
• Question 2088: A ray of light makes an angle of 35^o with a plane mirror. What is the angle of reflection? Options:
  A) 35^o
  B) 55^o
  C) 70^o
  D) 65^o
  Show Answer
  The correct answer is B .
• Question 2089: The theory of electronic conduction in solids, which satisfactorily explains the properties of conductors, insulators and semi-conductor,is? Options:
  A) string theory
  B) particle theory
  C) group theory
  D) band theory
  Show Answer
  The correct answer is D .
• Question 2090: blowing air over a liquid aids evaporation by Options:
  A) increasing its surface area
  B) decreasing its vapour pressure
  C) increasing its temperature
  D) decreasing its density
  Show Answer
  The correct answer is A .