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 691:

  Gases conduct electricity under

  Options:
  A) high pressure and high voltage
  B) low pressure and low voltage
  C) normal pressure and low voltage
  D) low pressure and high voltage
  Show Answer
  The correct answer is D .
• Question 692: A liquid of mass 1.0 x 10³kg fills a rectangular tank of length 2.5m and width 2.0m. If the tank is 4m high, what is the pressure at the middle of the tank?[g = 10ms^-2] Options:
  A) 1.0 x 10⁴Nm^-2
  B) 2.0 x 10³Nm^-2
  C) 1.5 x 10³Nm^-2
  D) 1.0 x 10³Nm^-2
  Show Answer
  The correct answer is D .
• Question 693: A galvanometer has a resistance of 5Ω. By using a shunt wire of resistance 0.05Ω, the galvanometer could be converted to an ammeter capable of reading 2Amp. What is the current through the galvanometer? Options:
  A) 2mA
  B) 10mA
  C) 20mA
  D) 25mA
  Show Answer
  The correct answer is C .
• Question 694:

  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 695:

  When a yellow card is observed through blue glass, the card would appear

  Options:
  A) black
  B) green
  C) red
  D) white
  Show Answer
  The correct answer is A .
• Question 696: A catapult used to hold a stone of mass 500g is extended by 20cm with an applied force F. If the stone leaves with a velocity of 40m/s, the value of F is Options:
  A) 4.0 x 10²N
  B) 2.0 x 10³N
  C) 4.0 x 10³N
  D) 4.0 x 10⁴N
  Show Answer
  The correct answer is B .
• Question 697: If the maximum voltage across a 100ohms resistor is 20V, then the maximum power it can dissipate is Options:
  A) 5.00W
  B) 4.00W
  C) 2.00W
  D) 25W
  Show Answer
  The correct answer is B .
• Question 698:

  The sensitivity of a thermometer is

  Options:
  A) All of the above
  B) how quickly a temperature change can be detected
  C) the difference between the maximum and the minimum temperature
  D) the smallest temperature change that can be detected or measured
  Show Answer
  The correct answer is D .
• Question 699:

  

  Three 2-µF capacitors are arranged as seen in the circuit above . The effective capacitance between E and F is

  Options:
  A) 0.75µF
  B) 1.33µF
  C) 3.00µF
  D) 6.00µF
  Show Answer
  The correct answer is B .
• Question 700: The angle between the magnetic meridian and the geographic meridian at a locality on the earth is the Options:
  A) longitude of the locality
  B) angle of inclination at the locality
  C) latitude of the locality
  D) angle of declination of the locality
  Show Answer
  The correct answer is D .