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 551: X rays can be used in the study of crystal structure because they Options:
  A) have a very long-reaching wavelength
  B) have extremely short wavelength
  C) are invisible
  D) are very fast
  Show Answer
  The correct answer is B .
• Question 552:

  

  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 553:

  A magnetic needle is suspended first at the earth's north magnetic pole and then at a point on the magnetic equator. The respective angles between the needle and the horizontal are

  Options:
  A) 0${}^o$ and 0${}^o$
  B) 60${}^o$ and 60${}^o$
  C) 90${}^o$ and 90${}^o$
  D) 90${}^o$ and 0${}^o$
  Show Answer
  The correct answer is D .
• Question 554: In copper plating, a current of 0.5A is allowed for cathode area of 100cm². If this current is maintained constant for 100 minutes, the thickness of the copper deposited will be approximately (the electrochemical equivalent of copper = 0.0003g/^oC, density of copper = 10^-4g/cm³ ) Options:
  A) 10^-2mm
  B) 10^-3mm
  C) 10^-4mm
  D) 10^-5mm
  E) 10^-6mm
  Show Answer
  The correct answer is E .
• Question 555:

  In the molecular explanation of conduction, heat is transferred by the

  Options:
  A) Free electrons
  B) Free atoms
  C) Free molecules
  D) Free solids
  Show Answer
  The correct answer is A .
• Question 556:

  Which of the following is consistent with Charles' law?

  I. 

  II. 

  III. 

  IV. 

  Options:
  A) I
  B) II
  C) III
  D) IV
  Show Answer
  The correct answer is A .
• Question 557: Which of the following is true of the loudness of sound? It Options:
  A) depends on the square of the amplitude of the vibrating body
  B) is proportional to the distance of the observer from the source of the sound
  C) is greatest in vacuum
  D) is dependent in vacuum
  Show Answer
  The correct answer is A .
• Question 558: The heat produced in a conductor carrying an electric current is Options:
  A) inversely proportional to the current and the resistance
  B) directly proportional to the current, resistance and the time
  C) inversely proportional to of the resistance, current and the time
  D) directly proportional to the square of the current, the resistance and the time
  Show Answer
  The correct answer is D .
• Question 559: Which of the following pairs of phenomena helps in the resolution of the wave-particle paradox of matter? Options:
  A) Compton effect and thermionic emission
  B) Electron diffraction and refraction
  C) emission and absorption of light
  D) Interference and polarization
  E) Reflection and photoelectric effect
  Show Answer
  The correct answer is C .
• Question 560:

  

  If current flows in the direction of the arrows in the solenoid above, the north pole is at

  Options:
  A) P
  B) Y
  C) X
  D) Q
  Show Answer
  The correct answer is D .