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 2421: Which of the following units is equivalent to kgms^-1? Options:
  A) Ns^-1
  B) Nms^-1
  C) Ns
  D) Js^-1
  Show Answer
  The correct answer is C .
• Question 2422: Which of the following quantities has the same unit as the watt? Options:
  A) Force x time
  B) Force x distance
  C) Force x acceleration
  D) Force x velocity
  Show Answer
  The correct answer is D .
• Question 2423:

  

  In the series a.c circuit shown above, the p.d across the inductor is 8V_r.m.s and that across the resistor is 6V_r.m.s. The effective voltage is

  Options:
  A) 2V
  B) 10V
  C) 14V
  D) 48V
  Show Answer
  The correct answer is B .
• Question 2424:

  

  Two mirrors M1 and M2 are inclined at right angles as shown above calculate the angle of reflection of the ray of light at M2

  Options:
  A) ${30}^{\circ }$
  B) ${45}^{\circ }$
  C) ${60}^{\circ }$
  D) ${90}^{\circ }$
  Show Answer
  The correct answer is C .
• Question 2425: If a room is saturated with water vapour, the temperature of the room must be Options:
  A) at 0^oC
  B) above the dew point
  C) at 100^oC
  D) below or at the dew point
  Show Answer
  The correct answer is D .
• Question 2426:

  A certain radioactive source emits radiation that was found to be deflected by both magneticand electric fields. The radiation is?

  Options:
  A) beta rays
  B) gamma rays
  C) x-rays
  D) ultra-violet rays
  Show Answer
  The correct answer is A .
• Question 2427: Temperature is the measure of the Options:
  A) quantity of heat transferred into the molecules of an object
  B) mean kinetic energy of the molecules of the object
  C) kinetic energy of any individual molecule of the substance
  D) amount of work done by the molecules of the object
  Show Answer
  The correct answer is B .
• Question 2428: A brass rod is 2m long at a certain temperature. What is the length for a temperature rise of 100K, if the expansivity of brass is 18 x 10^-6K^-1? Options:
  A) 2.0036m
  B) 2.0018cm
  C) 2.1800
  D) 2.0360m
  Show Answer
  The correct answer is A .
• Question 2429:

  

  The total power drawn from the cell in the circuit above is

  Note: The cell voltage is 12V and all three resistors are 4 ohm resistors.

  Options:
  A) 12W
  B) 24W
  C) 32W
  D) 40W
  Show Answer
  The correct answer is B .
• Question 2430: The direction of the magnetic field at a point in the vicinity of a bar magnet is Options:
  A) always towards the north pole of the magnet
  B) always away from the south pole of the magnet
  C) along the line joining the point to the neutral point
  D) in the direction the north pole of a compass needle would point
  Show Answer
  The correct answer is D .