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 1211: What is the relationship mechanical advantage (MA) velocity Ratio (V.R) and efficiency with percentage? Options:
  A) e = M.A/V.R × 100 %
  B) M.A = E.V.R
  C) V.R = 1 ÷ sin θ M.A
  D) M.A = 1/E × 100%
  Show Answer
  The correct answer is A .
• Question 1212: A wave has a frequency of 2Hz and a wavelength of 30cm. The velocity of the wave is Options:
  A) 60.0ms^-1
  B) 6.0ms^-1
  C) 1.5ms^-1
  D) 0.6ms^-1
  Show Answer
  The correct answer is D .
• Question 1213: The instrument used by designers to obtain different color pattern is called? Options:
  A) periscop
  B) sextant
  C) episcope
  D) kaleidoscope
  Show Answer
  The correct answer is D .
• Question 1214: 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 1215:

  The density of a certain oil on frying becomes

  0.4 kgm^-3 with the volume of 20m³. what will be its initial volume when its initial density is 0.8 kgm^-3 assuming no loss of oil due to spillage?

  Options:
  A) 12 kgm^-3
  B) 10 kgm^-3
  C) 8 kgm^-3
  D) 5 kgm^-3
  Show Answer
  The correct answer is B .
• Question 1216: An electric lamp marked 240v, 60 W is left to operate for an hour. How much energy is generated by the filament? Options:
  A) 3.86 x 10⁵J
  B) 3.56 x 10⁵J
  C) 1.80 x 10⁴J
  D) 2.16 x 10⁵J
  Show Answer
  The correct answer is D .
• Question 1217:

  

  Calculate the refractive index of the material for the glass prism in the diagram above

  Options:
  A) ^√2/₂
  B) ⁴/₃
  C) √2
  D) ³/₂
  Show Answer
  The correct answer is C .
• Question 1218: 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 1219: Two liquids X and Y having the same mass are supplied with the same quantity of heat. If the temperature rise in X is twice that of Y, the ratio of specific heat capacity of X to that of Y is Options:
  A) 2:1
  B) 1:2
  C) 4:1
  D) 1:4
  Show Answer
  The correct answer is A .
• Question 1220: What is the acceleration due to gravity 'g' on the moon, if g is 10^-2 on the earth? Options:
  A) 0. 10 ms^-2
  B) 0.74ms^-2
  C) 1.6ms^-2
  D) 10.00ms^-2
  Show Answer
  The correct answer is C .