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 681:

  If electron are accelerated from rest through a potential difference of 10kv, what is the wavelength of the associated electron

  [m = 9.1 x 10^-31kg, e = 1.6 x 10^-19C, h = 6.6 x 10^-34js]

  Options:
  A) 1.22 x 10^-11m
  B) 3.87 x 10^-10m
  C) 2.27 x 10¹¹m
  D) 2.27 x 10¹⁴m
  Show Answer
  The correct answer is A .
• Question 682: The carbon-granules microphone works on the principle of change in Options:
  A) inductance
  B) resistance
  C) capacitance
  D) voltage
  Show Answer
  The correct answer is B .
• Question 683: Which of the following with respect to a body performing simple harmonic motion are in phase? Options:
  A) displacement and velocity of the body
  B) displacement and force on the body
  C) velocity and acceleration of the body
  D) force acting on the body and the acceleration
  Show Answer
  The correct answer is C .
• Question 684: A platinum resistance thermometer records 3.0$\mathrm{\Omega }$ at 0^oC and 8.0$\mathrm{\Omega }$ at 100^oC. If it records 6.0$\mathrm{\Omega }$ in a certain environment, The temperature of the medium is Options:
  A) 80^oC
  B) 60^oC
  C) 50^oC
  D) 30^oC
  Show Answer
  The correct answer is B .
• Question 685: In a gas experiment, if the volume of the gas is plotted against the reciprocal of the pressure, the unit of the slope of the resulting curve is Options:
  A) force
  B) temperature
  C) power
  D) work
  Show Answer
  The correct answer is D .
• Question 686: Which of the following pairs of musical instruments produce sound due to the vibration of air column? Options:
  A) Bell and piano
  B) Guitar and flute
  C) Trumpet and drum
  D) Trumpet and flute
  E) Violin and organ
  Show Answer
  The correct answer is D .
• Question 687:

  The volume of 0.354g of helium at 273°C and 114cm of mercury pressure is 2667cm${}^3$. Calculate the volume

  Options:
  A) 2000.25 cm${}^3$
  B) 200.025 cm${}^3$
  C) 4003.27 cm${}^3$
  D) 2010.25 cm${}^3$
  Show Answer
  The correct answer is B .
• Question 688:

  

  In the diagram shown, which of the simple pendulum will resonate with P when set into oscillation?

  Options:
  A) U
  B) T
  C) R and T
  D) Q and R
  Show Answer
  The correct answer is B .
• Question 689:

  A stone is released from a height of 80m above the ground. Calculate its velocity just before it strikes the ground. (g=10ms^-2)

  Options:
  A) 25ms^-1
  B) 40 ms^-1
  C) 55 ms^-1
  D) 65ms^-1
  E) 80 ms^-1
  Show Answer
  The correct answer is B .
• Question 690: In what range of temperature is the expansion of water anomalous? Options:
  A) +208^oC to +212^oC
  B) -80^oC + -76^oC
  C) -4^oC to 0^oC
  D) +96^oC to +100^oC
  E) 0^oC to +4^oC
  Show Answer
  The correct answer is E .