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 1251:

  

  The total resistance measured at PQ in the diagram above is

  Options:
  A) 18.0Ω
  B) 11.0Ω
  C) 4.0Ω
  D) 2.0Ω
  Show Answer
  The correct answer is C .
• Question 1252: Which of the following is a vector? Options:
  A) Electric charge
  B) Electric field
  C) Electrical potential difference
  D) Electrical capacitance
  Show Answer
  The correct answer is B .
• Question 1253: If a current carrying coil is mounted on a metal frame, the back e.m.f. induced in the coil causes Options:
  A) inductance
  B) eddy currents
  C) elecro-magnetism
  D) dipole moment
  Show Answer
  The correct answer is B .
• Question 1254: The production and type of charge of a body can only be accounted for by the? Options:
  A) deficiency or surplus of electrons
  B) equibrium in protons and neutrons
  C) deficiency or surplus of protrons
  D) deficiency or surplus of neutrons
  Show Answer
  The correct answer is A .
• Question 1255: The pair of physical quantities that are scalar only are ? Options:
  A) volume and area
  B) moment and momentum
  C) length and displacement
  D) Impulse and time
  Show Answer
  The correct answer is A .
• Question 1256:

  Light of wavelength 589 nm in vacuum passes through a piece of fused quartz of index of refraction n = 1.458. What is the frequency of the light in fused quartz?

  [Speed of light c = $3.00\times {10}^{8}m{s}^{-1}$]

  Options:
  A) $5.09\times {10}^{15}$Hz
  B) $5.09\times {10}^{14}$ Hz
  C) $1.77\times {10}^{15}$ Hz
  D) $1.77\times {10}^{14}$ Hz
  Show Answer
  The correct answer is B .
• Question 1257: An a.c circuit of e.m.f 12V has a resistor of resistance 8Ω connected in series to an inductor of inductive reactance 16Ω and a capacitor capacitive reactance 10Ω. The current flow in the circuit is Options:
  A) 1.4A
  B) 1.2A
  C) 12.0A
  D) 14.0A
  Show Answer
  The correct answer is B .
• Question 1258:

  The density of 400cm³ of palm oil was 0.9gcm^-3 before frying. If the density of the oil was 0.6gcm^-3 after frying, assuming no loss of oil due to spilling, its new volume was?

  Options:
  A) 1360cm${}^3$
  B) 600cm${}^3$
  C) 240cm${}^3$
  D) 8000m${}^3$
  Show Answer
  The correct answer is B .
• Question 1259:

  A lead bullet of mass 0.05kg is fired with a velocity of 200ms${}^{-1}$ into a block of mass 0.95kg. Given that the lead block can move freely, the final kinetic energy after impact is?

  Options:
  A) 50J
  B) 100J
  C) 150J
  D) 200J
  Show Answer
  The correct answer is A .
• Question 1260: A man of mass 50kg ascends a flight of stairs 5m high in 5 seconds. If acceleration due to gravity is 10ms^-2, the power expended is Options:
  A) 100W
  B) 200W
  C) 250W
  D) 400W
  E) 500W
  Show Answer
  The correct answer is E .