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 1661: Which of the following may be used to explain a mirage? i. layers of air near the road surface have varying refractive indices in hot weather. ii. road surfaces sometimes become good reflectors in hot weathers. iii. light from the sky can be reflected upwards after coming close to the road surface. Options:
  A) ii only
  B) ii and iii only
  C) i and iii only
  D) i, ii, and iii only
  Show Answer
  The correct answer is C .
• Question 1662: Which of the following pairs of musical instruments produce sound due to the vibration of air column? Options:
  A) Bell and piano
  B) Guitar and flute
  C) Trumpet and drum
  D) Trumpet and flute
  E) Violin and organ
  Show Answer
  The correct answer is D .
• Question 1663: Which of the following statements is correct about light and sound waves? Both Options:
  A) are longitudinal waves
  B) are transverse waves
  C) have the same velocity in air
  D) need a medium for propagation
  E) transmit energy
  Show Answer
  The correct answer is E .
• Question 1664: A 24V potential difference is applied across a parallel combination of four 6-ohms resistor, The current in each resistor is Options:
  A) 1A
  B) 4A
  C) 16A
  D) 18A
  E) 36A
  Show Answer
  The correct answer is B .
• Question 1665: The distance between two successive crests of a water wave is 0.5m. If a particle on the surface of the water wave makes two complete vertical oscillations in 1s, calculate the speed of the wave. Options:
  A) 0.25ms^-1
  B) 0.50ms^-1
  C) 1.00ms^-1
  D) 2.00ms^-1
  E) 4.00ms^-1
  Show Answer
  The correct answer is C .
• Question 1666: A temperature scale has a lower fixed point of 40mm and a upper fixed point of 200mm. What is the reading on this scale when a thermometer reads 60^oC? Options:
  A) 33.3mm
  B) 36.0mm
  C) 96.0mm
  D) 136.0mm
  Show Answer
  The correct answer is D .
• Question 1667: An electric lamp marked 240v, 60 W is left to operate for an hour. How much energy is generated by the filament? Options:
  A) 3.86 x 10⁵J
  B) 3.56 x 10⁵J
  C) 1.80 x 10⁴J
  D) 2.16 x 10⁵J
  Show Answer
  The correct answer is D .
• Question 1668: A 12V battery supplies a current of 0.4A to a lamp. Calculate the resistance of the lamp. Options:
  A) 30.00
  B) 4.80
  C) 3.00
  D) 0.30
  E) 0.03
  Show Answer
  The correct answer is A .
• Question 1669: When a man moves toward a plane mirror at a speed of 6m/s, the distance the man and his image increased at a speed of? Options:
  A) 2 m/s
  B) 4 m/s
  C) 12 m/s
  D) 14 m/s
  Show Answer
  The correct answer is C .
• Question 1670: What is the best method of demagnetizing a steel bar magnet? Options:
  A) Hammering
  B) Heating it
  C) Rough handling it
  D) Solenoid method
  Show Answer
  The correct answer is D .