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 1641:

  If a source of solid is moving, a stationary listener will hear a sound of different frequency. This is called?

  Options:
  A) doppler effect
  B) resonance
  C) ultra sound
  D) rarefaction
  Show Answer
  The correct answer is A .
• Question 1642: When two parallel wires carry currents in opposite directions, the force on either wire is Options:
  A) away from the other wire
  B) zero, because the currents cancel each other
  C) twice as much as when the currents are in the same direction
  D) towards the other wire
  Show Answer
  The correct answer is A .
• Question 1643:

  

  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 1644:

  

  The length of piece of glass block was measured by means of a vernier calliper as shown above. The length of the glass block is

  Options:
  A) 1.63 cm
  B) 1.64 cm
  C) 1.65 cm
  D) 1. 66 cm
  Show Answer
  The correct answer is B .
• Question 1645: The force experienced by an object of mass 60.0kg in the moon's gravitational field is 1.002 x 10²N. What is the intensity of the gravitational field? Options:
  A) 0.60Nkg^-1
  B) 1.67Nkg^-1
  C) 6.12 x 10²Nkg^-1
  D) 9.81ms^-2
  Show Answer
  The correct answer is B .
• Question 1646: An elevator of mass 4800kg is supported by a cable which can safely withstand a maximum tension of 60 000N. The maximum upward acceleration the elevator can have is Options:
  A) 2.5ms^-2
  B) 5.0ms^-2
  C) 7.5ms^-2
  D) 10.0ms^-2
  Show Answer
  The correct answer is A .
• Question 1647: If the linear magnification of the objective and eyepiece convex lenses of a compound microscope are 4 and 7 respectively. Calculate the angular magnification of the microscope Options:
  A) 2
  B) 3
  C) 11
  D) 28
  Show Answer
  The correct answer is D .
• Question 1648: Which of the following are the correct SI units of the quantities indicated? i.N(Force) II. Mn^-1 (Torque) iii. watt(Power) iv. kgms^-2 Options:
  A) i and ii only
  B) i, ii and iii only
  C) i, ii, and iv only
  D) i and iii only
  Show Answer
  The correct answer is D .
• Question 1649:

  

  From the diagram above, if the potential difference across the resistor, capacitor and inductor are 80 v, 110 v, 40 v respectively, the effective potential difference is

  Options:
  A) 116.3 V
  B) 50.0 V
  C) 230.0 V
  D) 106.3 V
  Show Answer
  The correct answer is D .
• Question 1650:

  I. Diameter of a small ball bearing.

  II. Thickness of a pieces of paper.

  III. Diameter of a measuring cylinder.

  IV. Length of a piece of wire.

  Which of the above can be measured using a micrometer screw gauge?

  Options:
  A) I, II and IV only .
  B) I and II only
  C) II and III only
  D) III and IV only
  Show Answer
  The correct answer is B .