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 91:

  What is the cost of running five 50W lamps and four 100W lamps for 10 hours if electrical energy costs 2 Kobo per KWh?

  Options:
  A) N0.65
  B) N0.39
  C) N3.90
  D) N0.13
  Show Answer
  The correct answer is D .
• Question 92: A clinical thermometer is different from other mercury in glass thermometers owing to Options:
  A) the constriction on its stem
  B) the grade of mercury used in it
  C) its long stem
  D) its wide range of temperatures
  Show Answer
  The correct answer is A .
• Question 93:

  

  PQ is a thin rod on a horizontal table, RS is a plane mirror inclined at ${45}^{\circ }C$ to the horizontal as shown above. The image of PQ as seen in the mirror by the eye T is

  Options:
  A) horizontal
  B) parallel to the mirror
  C) at infinity
  D) vertical
  E) highly magnified
  Show Answer
  The correct answer is B .
• Question 94:

  

  In the Figure above, QR is a vertical conductor and the current I flows from R to Q, P is a point on the horizontal plane and is to the south of the wire. The direction of the magnetic field at P due to the current is

  Options:
  A) Upward
  B) North
  C) South
  D) West
  E) East
  Show Answer
  The correct answer is D .
• Question 95:

  The force required to make an object of mass m, travelling with velocity v, turn in a circle of radius r is

  Options:
  A) $\frac{m{v}^2}{r}$
  B) $\frac{m{r}^2}{x}$
  C) $\frac{mr}{v}$
  D) $\frac{mv}{r^2}$
  Show Answer
  The correct answer is A .
• Question 96:

  A 3000W electric cooker is to be used on a 200V mains circuit. Which of the fuses below can be used safely with the cooker?

  Options:
  A) 2A
  B) 5A
  C) 10A
  D) 20A
  Show Answer
  The correct answer is D .
• Question 97: Which of the following with respect to a body performing simple harmonic motion are in phase? Options:
  A) displacement and velocity of the body
  B) displacement and force on the body
  C) velocity and acceleration of the body
  D) force acting on the body and the acceleration
  Show Answer
  The correct answer is C .
• Question 98:

  

  In the diagram given if the atmospheric pressure is 760mm, the pressure in the chamber G Is

  Options:
  A) 660mmHg
  B) 890mmHg
  C) 690mmHg
  D) 860mmHg
  Show Answer
  The correct answer is C .
• Question 99:

  

  What is the resistance of the circuit shown above

  Options:
  A) 4Ω
  B) 11Ω
  C) 19/5Ω
  D) 17/4Ω
  E) 8Ω
  Show Answer
  The correct answer is E .
• Question 100: A wave of frequency 10Hz forms a stationary wave pattern in a medium where the velocity is 20cms^-1. The distance between adjacent nodes is Options:
  A) 1.0cm
  B) 1.5cm
  C) 2.0cm
  D) 5.0cm
  Show Answer
  The correct answer is C .