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 141: The inability of the eye to focus near objects is known as Options:
  A) astigmatism
  B) eye ring
  C) hypermetropia
  D) myopia
  E) presbyopia
  Show Answer
  The correct answer is C .
• Question 142: The general equation of a wave CANNOT be written as Options:
  A) y = A Sin [2 π ($\frac{t}{T}$ ± Xλ)]
  B) y = A Sin [wt ± kx]
  C) y = A Sin [2 $\frac{\pi }{\lambda }$ (vt ± x)]
  D) y = A Sin [2π (ft ± $\frac{X}{\lambda }$ )]
  E) y = A Sin 2 π f(T ± $\frac{X}{\lambda }$)]
  Show Answer
  The correct answer is E .
• Question 143:

  An air bubble of radius 4.5 cm initially at a depth of 12 m below the water surface rises to the surface. If the atmospheric pressure is equal to 10.34 m of water, the radius of the bubble just before it reaches the water surface is

  Options:
  A) 6.43 cm
  B) 8.24 cm
  C) 4.26 cm
  D) 5.82 cm
  Show Answer
  The correct answer is D .
• Question 144:

  

  The diagram above show s the force-extension curve of a piece of wire. The energy stored when the wire is stretched from E to F is

  Options:
  A) 7.5 x 10^-3J
  B) 2.5 x 10^-3J
  C) 1.5 x 10^-2J
  D) 7.5 x 10^-1J
  Show Answer
  The correct answer is A .
• Question 145: J.J. Thomson’s model of the atom was abandoned because Options:
  A) it could not explain the scattering of alpha particles
  B) it did not account for the neutron
  C) it did not account for the size of the atom
  D) it was known as plum-pudding model
  E) the model was not similar to any observable phenomena
  Show Answer
  The correct answer is A .
• Question 146:

  The change in volume when 450kg of ice is completely melted is

  [density of ice = 900 kgm^-3, density of water = 100 kgm^-3]

  Options:
  A) 0.50m³
  B) 0.45m³
  C) 0.05m³
  D) 4.50m³
  Show Answer
  The correct answer is C .
• Question 147:

  

  In the diagram above, the hanging mass m2 is adjusted until m1 is on the verge of sliding. The coefficient of static friction between the mass m1 and the table is

  Options:
  A) m1/m2
  B) m1g/m2
  C) m2/m1
  D) m2g/m1
  Show Answer
  The correct answer is C .
• Question 148: As a result of air at the top of a barometer, the height of the mercury column is 73.5cm when it should be 75.0cm; the volume of the space above the mercury is 8.0cm³. Calculate the correct barometer height when the barometer reads 74.0cm and the volume of the space above the mercury is 6.0cm³. Options:
  A) 72.0cm
  B) 74.5cm
  C) 75.1cm
  D) 76.0cm
  Show Answer
  The correct answer is D .
• Question 149: A body has masses of 0.013kg and 0.012 kg in oil and water respectively. If the relative density of oil is 0.875 calculate the mass of the body. Options:
  A) 0.02 kg
  B) 0.03kg
  C) 0.04kg
  D) 0.05kg
  E) 0.06kg
  Show Answer
  The correct answer is A .
• Question 150: Three resistors, with substances 250$\mathrm{\Omega }$, 500$\mathrm{\Omega }$ and 1k$\mathrm{\Omega }$ are connected in series. A 6V battery is connected to either end of the combination. Calculate the pot3ential difference between the end of the 250$\mathrm{\Omega }$ resistor. Options:
  A) 0.20V
  B) 0.86V
  C) 1.71V
  D) 3.43V
  Show Answer
  The correct answer is B .