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 1261: Which of the following has the lowest internal resistance when new? Options:
  A) leclanche cell
  B) Daniel cell
  C) Accumulator
  D) Torch battery
  Show Answer
  The correct answer is C .
• Question 1262: If the relative density of gold is 19.2, the volume of 2.4kg of gold is? Options:
  A) 8.00 x 10^-3 m³
  B) 1.25 x 10^-4 m³
  C) 1.92 x 10^-4 m³
  D) 4.61 x 10^-3 m³
  Show Answer
  The correct answer is B .
• Question 1263:

  Ripple in a power supply unit is caused by

  Options:
  A) using an alternating current source
  B) forward voltage drop
  C) heavy load
  D) using a zener diode
  Show Answer
  The correct answer is D .
• Question 1264:

  Two metals P and Q are heated through the same temperature difference. If the ratio of the linear expansivities of P to Q is 2:3 and the ratio of their

  Length is 3: 4 respectively, the ratio of the increase in lengths of P to Q is

  Options:
  A) 1:2
  B) 2:1
  C) 8:9
  D) 9:8
  Show Answer
  The correct answer is A .
• Question 1265:

  A man walks 8km north and then 5km in a direction 60^o east of north. Find the distance from his starting point

  Options:
  A) 11.36km
  B) 12.36km
  C) 13.00km
  D) 14.36km
  Show Answer
  The correct answer is A .
• Question 1266: The displacement d produced in a glass block of thickness t and refractive index n when an object is viewed through it is Options:
  A) t – n
  B) t (1 + 1/n)
  C) t (1-1/n)
  D) t (1/n - 1)
  Show Answer
  The correct answer is C .
• Question 1267:

  A ball of mass 0.5kg moving at 10ms${}^{-1}$ collides with another ball of equal mass at rest. If the two balls move off together after the impact, calculate their common velocity.

  Options:
  A) 0.2ms${}^{-1}$
  B) 0.5ms${}^{-1}$
  C) 5.0ms${}^{-1}$
  D) 5.5ms${}^{-1}$
  Show Answer
  The correct answer is C .
• Question 1268: An ammeter of resistance 5Ω has a full-scale deflection when a current of 50 mA flows in it. The value of the resistor required to adapt it to measure a current of 5 A is? Options:
  A) 0.25Ω
  B) 5.00Ω
  C) 19.80Ω
  D) 0.05Ω
  Show Answer
  The correct answer is D .
• Question 1269:

  

  In an experiment in which molten naphthalene is allowed to cool, the cooling curve in fig 5 was obtained, the temperature ${80}^{\circ }C$ is known as

  Options:
  A) cooling temperature
  B) boiling point
  C) melting point
  D) vaporization point
  Show Answer
  The correct answer is C .
• Question 1270: Two bodies have masses in the ratio 3:1. They experience forces which impart to them acceleration in the ratio 2:9 respectively. Find the ratio of forces the masses experienced. Options:
  A) 1 : 4
  B) 2 : 1
  C) 2 : 3
  D) 2 : 5
  Show Answer
  The correct answer is C .