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 1101:

  According to kinetic molecular model, in gases

  Options:
  A) The molecules are very fast apart and occupy all the space made available.
  B) The particles occur in clusters with molecules slightly farther apart.
  C) The particles are closely packed together, they occupy minimum space and are usually arranged in a regular pattern.
  D) The particles vibrate about fixed positions and are held together by the strong inter-molecular bond between them.
  Show Answer
  The correct answer is A .
• Question 1102: Cancerous cells can be destroyed by Options:
  A) ultraviolet rays
  B) alpha particules
  C) x - rays
  D) infrared rays
  Show Answer
  The correct answer is C .
• Question 1103: Which of the following factors has no effect on the e.m.f. of a primary cell? Options:
  A) temperature
  B) size of the cell
  C) nature of the plate
  D) nature of the electrolyte
  Show Answer
  The correct answer is B .
• Question 1104: Which of the following is the correct definition of 'half-life'? Options:
  A) the average life-time of a radioactive material
  B) the time it takes a radioactive material to decay to half of its original quantity
  C) half the period a radioactive material decays completely
  D) half of the decay constant
  E) the decay constant times life-time
  Show Answer
  The correct answer is B .
• Question 1105: A pencil is placed vertically between a concave mirror and its focal point. The image of the pencil in the mirror will be Options:
  A) real, inverted and diminished
  B) virtual, inverted and enlarged
  C) real, erect and enlarged
  D) virtual, erect and enlarged
  Show Answer
  The correct answer is D .
• Question 1106: A car battery rated 45 A H is charged with a charger whose rating is 2.5A.How long will it take to charge the battery full? Options:
  A) 10 hrs
  B) 18 hrs
  C) 20 hrs
  D) 25 hrs
  Show Answer
  The correct answer is B .
• Question 1107:

  

  E, F and G are yellow, red and cyan transparent light filters respectively. The color of a white opaque object when viewed through the arrangement of the filters above is

  Options:
  A) yellow
  B) red
  C) black
  D) blue
  Show Answer
  The correct answer is C .
• Question 1108: Which of these statements are correct for the pressures in liquids? i. pressure in a liquid at a point acts equally in all directions. ii. pressure increases with depth. iii. pressure at a depth depends on the shape of the container. iv. pressure at the same depth in different liquids are proportional to the density at different liquids. Options:
  A) i, ii, iii only
  B) i, ii, iv only
  C) i, iii, iv only
  D) ii, iii, iv only
  Show Answer
  The correct answer is B .
• Question 1109: Which of the following will be applied when a metal Y is used to electroplate another metal X in electrolysis? Options:
  A) X is the anode and very high current is used
  B) X is the anode and Y is the cathode
  C) Y is the cathode and X is the anode
  D) Y is the anode and very high current is used
  Show Answer
  The correct answer is D .
• Question 1110: In alternating current circuit at resonance, the angel of lead or lag is Options:
  A) π°
  B) (π)/2°
  C) (π)/3°
  D) 0°
  Show Answer
  The correct answer is B .