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 711:

  

  The figure above shows two waveforms X and Y. If the frequency of X is 30Hz what is the frequency of Y

  Options:
  A) 12Hz
  B) 19Hz
  C) 60Hz
  D) 75Hz
  Show Answer
  The correct answer is D .
• Question 712: in a series R-L-C circuit at resonance, the voltages across the resistor and the inductor are 30V and 40V respectively, what is the voltage across the capacitor? Options:
  A) 30V
  B) 40V
  C) 50V
  D) 70V
  Show Answer
  The correct answer is B .
• Question 713: In homes, electrical appliances and lamps are connected in parallel because Options:
  A) Parallel connections do not heat up the wires
  B) series connections use high voltage
  C) less current will be used
  D) less voltage will be used
  Show Answer
  The correct answer is C .
• Question 714: The property of a body to remain at rest or to continue to move in a straight line is known as Options:
  A) force
  B) Impulse
  C) Energy
  D) Inertia
  Show Answer
  The correct answer is D .
• Question 715:

  The lowest note emitted by a stretched string has a frequency of 40Hz. How many overtones are there between 40Hz and 180Hz?

  Options:
  A) 4
  B) 3
  C) 2
  D) 1
  Show Answer
  The correct answer is B .
• Question 716: Electric charges on the surface of a conductor would be most evenly distributed if the shape of the conductor is Options:
  A) conical
  B) cubical
  C) cylindrical
  D) parabolic
  E) spherical
  Show Answer
  The correct answer is C .
• Question 717: A piano wire 0.5m long has a total mass of 0.01kg and is stretched with a tension of 800N. Calculate the frequency of the wire when it sounds its fundamental note Options:
  A) 200Hz
  B) 100Hz
  C) 4Hz
  D) 2Hz
  Show Answer
  The correct answer is A .
• Question 718: The property of the eye known as its power of accommodation is controlled by the Options:
  A) pupil
  B) virteous humour
  C) iris
  D) ciliary muscles
  Show Answer
  The correct answer is D .
• Question 719: If the distance between two point charges its increased by a factor of four, the magnitude of the electrostatic force between them will be Options:
  A) ¹/₄ of its former value
  B) ¹/₁₆ of its former value
  C) ¹/₂ of its former value
  D) 4 times its former value
  Show Answer
  The correct answer is B .
• Question 720:

  

  The diagram above represents balls in an undulating surface. Which of the following option represents positions of stable equilibrium?

  Options:
  A) III, IV and VIII
  B) II, V and VIII
  C) III, VI and IX
  D) I, IV and VII
  Show Answer
  The correct answer is C .