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 611: The principle of operation of an induction coil is based on Options:
  A) Ohm's law
  B) Amphere's law
  C) Faraday's law
  D) Columbs law
  Show Answer
  The correct answer is C .
• Question 612: A car of mass 1500 kg goes round a circular curve of radius 50m at a speed of 40 ms^-1. The magnitude of the centripetal force on the car is ? Options:
  A) 4.8 x 10⁴ N
  B) 4.8 x 10³ N
  C) 1.2 x 10³ N
  D) 1.2 x 10² N
  Show Answer
  The correct answer is A .
• Question 613: One end of a long wire is fixed while a vibrator is attached to the other end. When the vibrator is energized, the types of waves generated in the wire are Options:
  A) stationary and longitudinal
  B) stationary and transverse
  C) progressive and transverse
  D) progressive and longitudinal
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  The correct answer is C .
• Question 614:

  

  The frequency of the wave in the diagram above is

  Options:
  A) 0.17 Hz
  B) 0.25 Hz
  C) 1.57 Hz
  D) 1.05 Hz
  Show Answer
  The correct answer is B .
• Question 615: Lenz's law is a law of conservation of Options:
  A) electric charge
  B) electric current
  C) Energy
  D) Momentum
  Show Answer
  The correct answer is C .
• Question 616: A 3m³ volume of liquid W of density 200kgm³ is mixed with another liquid L of volume 7m³ and density 150kgm^-3. the density of mixture is? Options:
  A) 165kgm^-3
  B) 100kgm^-3
  C) 265kgm^-3
  D) 350kgm^-3
  Show Answer
  The correct answer is A .
• Question 617:

  I. Coherence

  II. Same frequency

  III. Same wavelength

  IV. Same IntensityWhich of the conditions above are necessary to produce interference fringes?

  Options:
  A) I and III
  B) I, II and IV
  C) I, II and III
  D) II and III
  Show Answer
  The correct answer is C .
• Question 618: At what position will an object be placed in front of a concave mirror in order to obtain an image at infinity? Options:
  A) At the pole of the mirror
  B) At the principal focus
  C) at the center of the curvature
  D) Between the principal focus and the center of curvature
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  The correct answer is B .
• Question 619: The bulb of a motorcycle head-lamp is marked 40W, 6V. The resistance of the filament when it is switched on is Options:
  A) $\frac{6^2}{{40}^2}$ohms
  B) $\frac{40}{6^2}$ohms
  C) $\frac{40}{6}$ohms
  D) 6 x 40 ohms
  E) $\frac{6^2}{40}$ohms
  Show Answer
  The correct answer is E .
• Question 620: When connected to a mains of 250V, the fuse rating in the plug of an electric device of 1 KW is Options:
  A) 2 A
  B) 3 A
  C) 4 A
  D) 5 A
  Show Answer
  The correct answer is C .