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: Which of the following is a fundamental unit? Options:
  A) Newton
  B) Watt
  C) Joule
  D) Second
  Show Answer
  The correct answer is D .
• Question 1212:

  A 2H inductor has negligible resistance and is connected to a $\frac{50}{\pi }$ Hz A.C supply. The reactance of the inductor is?

  Options:
  A) 200$\mathrm{\Omega }$
  B) 50$\mathrm{\Omega }$
  C) $\frac{100}{\pi }$
  D) $\frac{25}{\pi \mathrm{\Omega }}$
  Show Answer
  The correct answer is A .
• Question 1213: A man of mass 50kg ascends a flight of stains 5m high in 5 seconds. If acceleration due to gravity is 10ms${}^{-2}$ the power expended is Options:
  A) 100w
  B) 200w
  C) 400w
  D) 500w
  Show Answer
  The correct answer is D .
• Question 1214: If the refractive index of a medium is V2, what is the critical angle? Options:
  A) 45^o
  B) 50^o12'
  C) 56^o25'
  D) 75^o
  E) 90^o
  Show Answer
  The correct answer is A .
• Question 1215: At low humidity in an environment, the human skin is usually? Options:
  A) damp and rough
  B) damp and smooth
  C) dry and rough
  D) dry and smooth
  Show Answer
  The correct answer is C .
• Question 1216:

  

  The diagram above shows a plank RS pivoted its center of gravity O and is in equilibrium with the weight P and Q. If a weight 2P is added to P the plank will be in equilibrium again by

  Options:
  A) moving Q nearer to O
  B) moving P nearer to O
  C) addding a weight Q to Q
  D) moving P further away from O
  Show Answer
  The correct answer is B .
• Question 1217: The phenomenon of light bending round an obstacle is? Options:
  A) diffraction
  B) refraction
  C) reflection
  D) polarization
  Show Answer
  The correct answer is A .
• Question 1218: What is the relative permitivity of a capacitor if its capacitance with a medium as dielectric is 16 farads and its capacitance with vacuum as dielectric is 2 farads? Options:
  A) o
  B) $\frac{1}{2}$
  C) 2
  D) 8
  E) 32
  Show Answer
  The correct answer is D .
• Question 1219: Which of the following quantities are scalars? i. Electrical potential ii. Torque iii. Momentum iv. Kinetic energy Options:
  A) ii and iii only
  B) i and ii only
  C) iii and iv only
  D) i and iv only
  Show Answer
  The correct answer is D .
• Question 1220: In which of the following material media will sound travel fastest? Options:
  A) oil
  B) metal
  C) gas
  D) water
  Show Answer
  The correct answer is B .