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 1051: A sheet of white paper viewed through blue glass appears blue because Options:
  A) blue is a primary colour
  B) the glass absorbs all colours except the blue colour
  C) the glass reflects blue colour
  D) the paper reflects blue colour only
  E) white light is easily absorbed by the glass
  Show Answer
  The correct answer is B .
• Question 1052:

  

  In the figure above, a lever of length 200m is used to lift a load of mass 180kg. The pivot at P is 20m from the load. what minimum force F must be applied at the end of the lever [g = 10ms^-2]

  Options:
  A) 9N
  B) 18N
  C) 20N
  D) 200N
  Show Answer
  The correct answer is D .
• Question 1053: A series RLC circuit is said to resonate, when Options:
  A) capacitive reactance is zero
  B) conductance is maximum
  C) current is minimum
  D) impedance is minimum
  E) inductive reactance is zero
  Show Answer
  The correct answer is D .
• Question 1054:

  The relationship between the coefficient of linear expansion $\alpha$ and volumetric expansion ($\gamma$) is-----------------

  Options:
  A) $\gamma$ = ${\alpha }^{-3}$
  B) $\gamma$ = $\alpha$
  C) 3$\alpha$
  D) $\gamma$ = ${\alpha }^3$
  Show Answer
  The correct answer is C .
• Question 1055:

  

  In the diagram above, the values of V₁ and V₂ are respectively

  Options:
  A) 1V and ¹/₃V
  B) ¹/₃V and 1V
  C) ¹/₃V and ²/₃V
  D) 1V and ²/₃V
  Show Answer
  The correct answer is D .
• Question 1056: Which of the following statements is correct? The reading of pressure on a mercury barometer is independent of Options:
  A) the cross-sectional area of the tube
  B) the atmospheric pressure
  C) the density of mercury
  D) the temperature of mercury
  E) the acceleration due to gravity
  Show Answer
  The correct answer is A .
• Question 1057: If the first position of resonance in a resonance tube is 18.0cm from the open end, the distance from the open end to the next position of resonance will be Options:
  A) 24.0cm
  B) 27.0cm
  C) 36.0cm
  D) 45.0cm
  E) 54.0cm
  Show Answer
  The correct answer is E .
• Question 1058: A man stands in front of a tall wall and produces a sound. If he receives the echo of the sound two seconds later, calculate his distance from the wall. (The speed of sound in air is 330ms^-1) Options:
  A) 600m
  B) 400m
  C) 330m
  D) 328m
  E) 165m
  Show Answer
  The correct answer is C .
• Question 1059: A potential difference of 6v is used to produce a current of 5A for 200s through a heating coil. The heat produced is Options:
  A) 4800 cal
  B) 6000 cal
  C) 2400J
  D) 240k cal
  E) 6000J
  Show Answer
  The correct answer is E .
• Question 1060: Two forces A and B act at a point. If their resultant is [given by] (B - A) in the direction of B, then Options:
  A) A and B are equal
  B) A is greater than B
  C) the angle between A and B is 0°
  D) the angle between A and B is 90°
  E) the angle between A and B is 180°
  Show Answer
  The correct answer is E .