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 1: The current in a reverse-biased junction is due to? Options:
  A) minority carriers
  B) electrons
  C) majority carriers
  D) holes
  Show Answer
  The correct answer is A .
• Question 2:

  

  The diagram above shows two capacitors P and Q of capacitance 5μF and 10μF. Find the charges stored in P and Q respectively

  Options:
  A) 2μC and 4μC
  B) 4μC and 2μC
  C) 100μC and 200μC
  D) 200μC and 100μC
  Show Answer
  The correct answer is C .
• Question 3:

  

  In the above fig, PQ and R are vectors, which of the following options, gives a correct relationship between the vectors

  Options:
  A) P = Q + R
  B) P = Q - R
  C) P = R - Q
  D) P + Q + R = O
  Show Answer
  The correct answer is A .
• Question 4:

  

  The diagram above represents a transverse electromagnetic wave travelling with speed 3.0 x 10⁸ms^-1. What is the frequency of the wave.

  Options:
  A) 3.0 x 10⁷Hz
  B) 9.0 x 10⁷Hz
  C) 1.0 x 10⁹Hz
  D) 3.0 x 10⁹Hz
  Show Answer
  The correct answer is D .
• Question 5: A galvanometer of resistance 20$\mathrm{\Omega }$ is to be provided with a shunt that $\frac{1}{10}$ of the whole current in a circuit passes through the galvanometer. The resistance of the shunt is Options:
  A) 2.00$\mathrm{\Omega }$
  B) 2.22$\mathrm{\Omega }$
  C) 18.00$\mathrm{\Omega }$
  D) 18.22$\mathrm{\Omega }$
  Show Answer
  The correct answer is B .
• Question 6: Which of the following is a derived unit? Options:
  A) Kilogramme
  B) Meter
  C) Kelvin
  D) Newton
  Show Answer
  The correct answer is D .
• Question 7: A mirror of weight 75N is hung by a cord from a hook on the wall. If the cord makes an angle of 30^o with horizontal, the tension in the cord is Options:
  A) 100N
  B) 1500N
  C) 250N
  D) 150N
  Show Answer
  The correct answer is D .
• Question 8:

  

  In the figure above if the atmospheric pressure is 760mm, the pressure of the chamber G is

  Options:
  A) 660mm
  B) 690mm
  C) 830mm
  D) 860mm
  Show Answer
  The correct answer is C .
• Question 9: A cell of internal resistance 0.01Ω can be measured accurately using the Options:
  A) Ohm meter
  B) metre bridge
  C) potentiometer
  D) electroscope
  Show Answer
  The correct answer is C .
• Question 10: Which type of radiation does not NOT originate within the nucleus? Options:
  A) alpha
  B) beta
  C) gamma
  D) neutron
  E) x-rays
  Show Answer
  The correct answer is E .