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 1181:
  

  Two mirrors of the same length are arranged as shown in the diagram. A ray of light NO strikes the system at O and emerges along PQ. The emergent ray has been deviated through

  Options:
  A) 220${}^o$
  B) 200${}^o$
  C) 210${}^o$
  D) 180${}^o$
  Show Answer
  The correct answer is D .
• Question 1182:

  

  The resultant capacitance in the figure above is

  Options:
  A) 15.0µF
  B) 9.8µF
  C) 1.3µF
  D) 0.8µF
  Show Answer
  The correct answer is D .
• Question 1183: What is the frquency of vibration if the balance wheel of a wrist watch makes 90 revolutions in 25 s? Options:
  A) 0.01 Hz
  B) 0.04 Hz
  C) 2.27 Hz
  D) 3.60 Hz
  Show Answer
  The correct answer is D .
• Question 1184: A near sighted student has a near point of 0.1m and a focal length of 5.0cm. What is the student's far point? Options:
  A) 0.200m
  B) 8.000m
  C) 0.125m
  D) 2.100m
  E) No Correct Option
  Show Answer
  The correct answer is E .
• Question 1185:

  

  Fig 12 above shows the velocity time graph of a car which starts from rest and is accelerated uniformly at the rate of 3m sec^-2 for 5 seconds. It attains a velocity which is maintained for a minute, The car is then brought to rest by a uniform retardation after another 3 seconds. calculate the total distance covered

  Options:
  A) 900m
  B) 1920m
  C) 960m
  D) 860m
  Show Answer
  The correct answer is C .
• Question 1186: Calculate the electric field intensity between two plates of potential difference 6.5V when separated by a distance of 35cm. Options:
  A) 18.57NC${}^{-1}$
  B) 53.06NC${}^{-1}$
  C) 2.28NC${}^{-1}$
  D) 0.80NC${}^{-1}$
  Show Answer
  The correct answer is A .
• Question 1187: When the tension in a sonometer wire is doubled, the ratio of the new frequency to the initial frequency is Options:
  A) $\frac{1}{\sqrt{2}}$
  B) $\frac{1}{2}$
  C) $\sqrt{2}$
  D) 2
  Show Answer
  The correct answer is C .
• Question 1188: The height at which the atmosphere ceases to exist is about 80km. If the atmospheric pressure on the ground level is 760mmHg, the pressure at a height of 20km above the ground level is Options:
  A) 380mmHg
  B) 570mmHg
  C) 190mmHg
  D) 480mmHg
  Show Answer
  The correct answer is B .
• Question 1189: Which of the following is a secondary colour Options:
  A) blue
  B) orange
  C) red
  D) green
  Show Answer
  The correct answer is B .
• Question 1190: An object moves with uniform speed round a circle. Its acceleration has Options:
  A) constant magnitude and constant direction
  B) constant magnitude and varying direction
  C) varying magnitude but constant direction
  D) varying magnitude and varying direction
  Show Answer
  The correct answer is B .