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 1201: The rise or fall of a liquid in a narrow tube is because of the Options:
  A) viscosity of the liquid
  B) surface tension of the liquid
  C) friction between the walls of the tube and the liquid
  D) osmotic pressure of the liquid
  Show Answer
  The correct answer is C .
• Question 1202: A 10g mass placed on the pan of a spring balance causes an extension of 5cm. If a 15g mass is placed on the pan of the same spring balance, the extension is Options:
  A) 3.3cm
  B) 6.5cm
  C) 7.5cm
  D) 10.8cm
  E) 15.0cm
  Show Answer
  The correct answer is C .
• Question 1203:

  The relationship between the coefficient of linear expansion $\alpha$ and volumetric expansion ($\gamma$) is-----------------

  Options:
  A) $\gamma$ = ${\alpha }^{-3}$
  B) $\gamma$ = $\alpha$
  C) 3$\alpha$
  D) $\gamma$ = ${\alpha }^3$
  Show Answer
  The correct answer is C .
• Question 1204: The pressure of a gas when cooled at constant volume will decrease because the molecules Options:
  A) collide less frequently with the walls of the container
  B) have the same average kinetic energy
  C) break up into smaller molecules
  D) decrease in number
  Show Answer
  The correct answer is A .
• Question 1205:

  

  E, F and G are yellow, red and cyan transparent light filters respectively. The color of a white opaque object when viewed through the arrangement of the filters above is

  Options:
  A) yellow
  B) red
  C) black
  D) blue
  Show Answer
  The correct answer is C .
• Question 1206:

  The binding energy of (${}_2^4\text{He}$) is

  [atomic mass of proton = 1.00783U, atomic mass of neutron = 1.00867U]

  Options:
  A) 4.033U
  B) 2.017U
  C) 0.033U
  D) 0.330U
  Show Answer
  The correct answer is C .
• Question 1207:

  It is known that a neutron exists in a light atomic nucleus

  Which of the following also exists in the nucleus?

  Options:
  A) An electron
  B) A β - particle
  C) β - particle
  D) proton
  Show Answer
  The correct answer is D .
• Question 1208:

  

  From the diagram above, the inductive reactance and the resistance R are respectively

  Options:
  A) 50Ω and 45Ω
  B) 25Ω and 51Ω
  C) 20Ω and 50Ω
  D) 10Ω and 49Ω
  Show Answer
  The correct answer is D .
• Question 1209: Two long parallel wires X and Y carry currents 3A and 5A each. if the force experienced by unit length is 5 x 10^-5N. the force per unit length experienced by wire Y is Options:
  A) 3 x 10^-5
  B) 3 x 10^-6
  C) 5 x 10⁵
  D) 5 x 10^-5
  Show Answer
  The correct answer is D .
• Question 1210: The speed of light in vacuum is 3.0 x 10⁸ms^-1. If the refractive index of a transparent liquid is $\frac{4}{3}$, then the speed of light in the liquid is Options:
  A) 0.44 x 10 ⁸ms^-1
  B) 2.25 x 10 ⁸ms^-1
  C) 3.0 x 10 ⁸ms^-1
  D) 4.0 x 10 ⁸ms^-1
  E) 4.33 x 10 ⁸ms^-1
  Show Answer
  The correct answer is B .