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 1341: A wire of length 100cm and cross-sectional area 2.0 × 10^-3cm² has a resistance of 0.10 ω. Calculate its electrical conductively. Options:
  A) 2.0 × 10-6 ω^-1cm^-1
  B) 5.0 × 10-5 ω^-1cm^-1
  C) 2.0 × 106 ω^-1cm^-1
  D) 5.0 × 106 ω^-1cm^-1
  E) 5.0 × 107 ω^-1cm^-1
  Show Answer
  The correct answer is B .
• Question 1342: Which to the following is NOT a fundamental unit? Options:
  A) Ampere
  B) Kelvin
  C) Kilogramme
  D) Newton
  E) Second
  Show Answer
  The correct answer is D .
• Question 1343: A beam of light is incident from air to water at an angle of 30^oC. Find the angle of refraction if the refractive index of water is $\frac{4}{3}$ Options:
  A) 15^oC
  B) 18^oC
  C) 22^oC
  D) 24^oC
  Show Answer
  The correct answer is C .
• Question 1344: 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 1345: When a certain a.c supply is connected to a lamp, it lights with the same brightness as it does with a 12 V d.c battery. Then r.m.s value of the a.c supply is? Options:
  A) 12.0 V
  B) 3.5 V
  C) 17.0 V
  D) 8.5
  Show Answer
  The correct answer is A .
• Question 1346: Total eclipse of the sun occurs when the Options:
  A) earth is between the moon and the sun
  B) sun is between the moon and the earth
  C) moon is between the sun and the earth
  D) ozone layer is threatened
  Show Answer
  The correct answer is C .
• Question 1347: A string of length 5cm is extended by 0.04m when a load of 0.8kg is suspended at the end. How far will it extend if a force of 16N is applied? [g = 10ms${}^{-2}$] Options:
  A) 0.04m
  B) 0.12m
  C) 0.01m
  D) 0.08m
  Show Answer
  The correct answer is D .
• Question 1348:

  

  The frequency of the wave in the diagram above is

  Options:
  A) 0.17 Hz
  B) 0.25 Hz
  C) 1.57 Hz
  D) 1.05 Hz
  Show Answer
  The correct answer is B .
• Question 1349: A weightless vessel of dimensions 4m x 3m x 2m is filled with a liquid of density 1000kgm^-3 and sealed. What is the maximum pressure this container can exert on a flat surface? [g = 10ms^-2] Options:
  A) 9 x 10⁴NM^-2
  B) 4 x 10⁴NM^-2
  C) 3 x 10⁴NM^-2
  D) 2 x 10⁴NM^-2
  Show Answer
  The correct answer is D .
• Question 1350:

  Two bodies have masses in the ratio3:1. They experience forces whichimpart 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 .