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 2361: Which of the following is NOT an example of a percussion instrument? Options:
  A) Bell
  B) Drum
  C) Flute
  D) Gong
  E) Xylophone
  Show Answer
  The correct answer is C .
• Question 2362: Which of the following assumptions is made in a simple pendulum experiment? the Options:
  A) suspending string is inextensible
  B) bob has a finite size
  C) bob has a definite mass
  D) initial angle of oscillation must be large
  Show Answer
  The correct answer is A .
• Question 2363: Heat is supplied to a block of ice 0^o until half of it has melted. Which of the following statements is true? Options:
  A) the temperature rises and the ice exoands
  B) the temperature remains constant and the volume of ice decreases
  C) the ice gives out heat as it melts
  D) the mass remains constant and the temperature increases
  E) the mass decreases because some heat is lost to the atmosphere
  Show Answer
  The correct answer is B .
• Question 2364: An a.c. generator can be converted into a d.c. generator by replacing Options:
  A) the slip rings with split-ring commutators
  B) the slip rings with armatures
  C) the split-rings with slip rings
  D) the split-rings with brushes
  E) the brushes with slip-ring commutators.
  Show Answer
  The correct answer is A .
• Question 2365: An object is placed 15cm in front of a concave mirror of focal length 20cm. The image formed is Options:
  A) real, inverted and diminished
  B) real, inverted and magnified
  C) virtual, erect and diminished
  D) virtual, erect and magnified
  E) virtual, inverted and magnified
  Show Answer
  The correct answer is D .
• Question 2366:

  Zener diode is used for?

  Options:
  A) current amplification
  B) power amplification
  C) voltage regulation
  D) energy conversion
  Show Answer
  The correct answer is C .
• Question 2367:

  A stone is released from a height of 80m above the ground. Calculate its velocity just before it strikes the ground. (g=10ms^-2)

  Options:
  A) 25ms^-1
  B) 40 ms^-1
  C) 55 ms^-1
  D) 65ms^-1
  E) 80 ms^-1
  Show Answer
  The correct answer is B .
• Question 2368: A capacitor 8$\mu$F is charged to a potential difference of 100V. The energy stored by the capacitor is Options:
  A) 1.0 x 10⁴J
  B) 8.0 x 10J
  C) 1.25 x 10J
  D) 4.0 x 10^-2J
  Show Answer
  The correct answer is D .
• Question 2369: An object is placed in front of a concave mirror whose radius of curvature is 12cm. If the magnification of the Image produced is 1.5, how far is the object from the mirror? Options:
  A) 8cm
  B) 10cm
  C) 15cm
  D) 18cm
  E) 20cm
  Show Answer
  The correct answer is B .
• Question 2370: The principle of transmissibility of pressure in a fluid at rest in all directions is known as Options:
  A) Archimede's principle
  B) Flotation Principle
  C) Newton's lwa
  D) Pascal's law
  E) Boyle's law
  Show Answer
  The correct answer is D .