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 2441: In which of the following are the substance arranged in descending order of their thermal conductivities? Options:
  A) copper, steel, glass
  B) steel, copper, glass
  C) steel, glass, copper
  D) copper, glass, steel
  Show Answer
  The correct answer is A .
• Question 2442:

  

  In fig 9 the value of R is

  Options:
  A) 3Ω
  B) 4Ω
  C) 5Ω
  D) 6Ω
  Show Answer
  The correct answer is D .
• Question 2443: The area under a force-distance graph represents Options:
  A) acceleration
  B) velocity
  C) power
  D) work
  E) momentum
  Show Answer
  The correct answer is D .
• Question 2444:

  If a body moves with a constant speed and at the same time undergoes an acceleration, its motion is said to be

  Options:
  A) circular
  B) oscillatory
  C) rectilinear
  D) rotational
  Show Answer
  The correct answer is A .
• Question 2445: An object is embedded in a block of ice, 10 cm below the plane surface. if the refractive index of the ice is 1.50, the apparent depth below the surface is Options:
  A) 2.50 cm
  B) 6.67 cm
  C) 7.50 cm
  D) 7.63 cm
  Show Answer
  The correct answer is B .
• Question 2446: Flourescent tubes produces light by the Options:
  A) excitation of gas molecules
  B) conduction of solar energy
  C) refraction of light by gas molecules
  D) thermal agitation of electron in the tubes
  Show Answer
  The correct answer is A .
• Question 2447:

  Calculate the mass of ice that would melt when 2kg of copper is quickly transferred from boiling water to a block of ice without heat loss (specific heat capacity of copper = 400Jkg${}^1$k${}^{-1}$, latent heat of fusion of ice = 3.3 x 10${}^5$Jkg${}^{-1}$)

  Options:
  A) $\frac{8}{33}$kg
  B) $\frac{3.3}{80}$kg
  C) $\frac{80}{33}$kg
  D) $\frac{3.3}{8}$kg
  Show Answer
  The correct answer is A .
• Question 2448: In fleming's right-hand rule, the thumb, the forefinger and the middle finger if held mutually at right angles represent respectively, the Options:
  A) motion, the field and the induced current
  B) induced current, the motion and the field
  C) field, the induced current and the motion
  D) induced current, the field and the motion
  Show Answer
  The correct answer is A .
• Question 2449: A given mass of an ideal gas occupies a volume V at a temperature T and under a pressure p. If the pressure is increased to 2p and the temperature reduced to $\frac{1}{2T}$, then the percentage change in the volume of the gas is Options:
  A) 0%
  B) 25%
  C) 75%
  D) 300%
  E) 400%
  Show Answer
  The correct answer is C .
• Question 2450:

  A semiconductor is formed by?

  Options:
  A) co-ordinate bonds
  B) electrovalent bonds
  C) a substance free of bonds
  D) covalent bonds
  Show Answer
  The correct answer is D .