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 1831: The resistances of platinum wire at the ice and steam points are 0.75 ohm and 1.05 ohm respectively. Determine the temperature at which the resistance of the wire is 0.90 ohm Options:
  A) 43.0^oC
  B) 50.0^oC
  C) 69.9^oC
  D) 87.0^oC
  Show Answer
  The correct answer is B .
• Question 1832: A room is heated by means of a charcoal fire, An occupant of the room standing away from the fire is warmed mainly by Options:
  A) convection
  B) radiation
  C) conduction
  D) reflection
  Show Answer
  The correct answer is B .
• Question 1833:

  

  The figure above shows two waveforms X and Y. If the frequency of X is 30Hz what is the frequency of Y

  Options:
  A) 12Hz
  B) 19Hz
  C) 60Hz
  D) 75Hz
  Show Answer
  The correct answer is D .
• Question 1834:

  The lower and upper fixed points marked on a Mercury-in-glass thermometer are 210mm apart. The end of the mercury column in the tube is 49mmabove the lower fixed point in a room. What is the temperature of the room in degrees Celsius?

  Options:
  A) 55.3${}^o$C
  B) 23.3${}^o$C
  C) 49.0${}^o$C
  D) 16.43${}^o$C
  Show Answer
  The correct answer is B .
• Question 1835: A Motor Tyre is inflated to pressure of 2.0 x 10⁵Nm^-2 when the temperature of air is 27^oC. What will be the pressure in it at 87^oC assuming that the volume of the Tyre does not change? Options:
  A) 2.6 x 10⁵Nm^-2
  B) 2.4 x 10⁵Nm^-2
  C) 2.2 x 10⁵Nm^-2
  D) 1.3 x 10⁵Nm^-2
  Show Answer
  The correct answer is B .
• Question 1836: If the fundamental frequency of a closed pipe organ on a day when the speed of sound is 340ms^-1 is 170Hz, then the length of the pipe is Options:
  A) 50cm
  B) 70cm
  C) 100cm
  D) 150cm
  E) 200cm
  Show Answer
  The correct answer is A .
• Question 1837: The coefficient of friction between two perfectly smooth surface is Options:
  A) infinity
  B) one
  C) half
  D) zero
  Show Answer
  The correct answer is D .
• Question 1838: Which of the following can conduct electricity owing to the presence of free mobile electrons? Options:
  A) germanium
  B) silicon
  C) grapefruit
  D) copper
  Show Answer
  The correct answer is D .
• Question 1839:

  Which process is responsible for production of energy in stars?

  Options:
  A) Nuclear reaction
  B) Nuclear fission
  C) Nuclear fusion
  D) Radioactive decay
  Show Answer
  The correct answer is C .
• Question 1840: A piece of stone attached to one end of a string is whirled round in a horizontal circle and the string suddenly cuts. The stone will fly off in a direction Options:
  A) perpendicular to the circular path
  B) parallel to the circular path
  C) tangential to the circular path
  D) towards the center of the circle
  Show Answer
  The correct answer is C .