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 1691: Which of the following will convert a milliammeter to a voltmeter? Options:
  A) low series resistance
  B) low parallel resistance
  C) high series resistance
  D) high parallel resistance
  E) parallel resistance equal to milliammeter resistance
  Show Answer
  The correct answer is C .
• Question 1692: What is the relative permitivity of a capacitor if its capacitance with a medium as dielectric is 16 farads and its capacitance with vacuum as dielectric is 2 farads? Options:
  A) o
  B) $\frac{1}{2}$
  C) 2
  D) 8
  E) 32
  Show Answer
  The correct answer is D .
• Question 1693:

  Neutrons were discovered by

  Options:
  A) Faraday
  B) Dalton
  C) James Chadwick
  D) Rutherford
  Show Answer
  The correct answer is C .
• Question 1694:

  If it takes 5.0 hrs to drain a container of 540.0cm³ of water, what is the flow rate of water from the container in kg^-1? [Density of water = 1000kgm^-3]

  Options:
  A) 32.5kg^-1 s
  B) 31.5kg^-1 s
  C) 30.8kg^-1 s
  D) 30.0kg^-1 s
  Show Answer
  The correct answer is D .
• Question 1695: Light of frequency 6.0 x 10¹⁴ Hz travelling in air is transmitted through glass or refractive index 1.5. Calculate the frequency of the light in the glass Options:
  A) 4.0 x 10¹⁴Hz
  B) 6.0 x 10¹⁴Hz
  C) 7.5 x 10¹⁴Hz
  D) 9.0 x 10¹⁴Hz
  Show Answer
  The correct answer is A .
• Question 1696: The fundamental frequency of vibration of a sonometer wire may be halved by Options:
  A) doubling the length of the wire
  B) doubling the mass of the wire
  C) reducing the tension by half
  D) reducing the absolute temperature by half
  Show Answer
  The correct answer is A .
• Question 1697: The direction of the magnetic field at a point in the vicinity of a bar magnet is Options:
  A) always towards the north pole of the magnet
  B) always away from the south pole of the magnet
  C) along the line joining the point to the neutral point
  D) in the direction the north pole of a compass needle would point
  Show Answer
  The correct answer is D .
• Question 1698: A planet has mass m₁ and is at a distance r, from the sun. A second planet has mass m₂ = 10m₁ and at a distance of r₂ = 2r₁ from the sun. Determine the ratio of the gravitational force experienced by the planets. Options:
  A) 1 : 5
  B) 2 : 5
  C) 3 : 5
  D) 4 : 5
  Show Answer
  The correct answer is B .
• Question 1699:

  A thermocouple thermometer is connected to a millivoltmeter which can read up to 10mV. When one junction is in ice at 0°C and the other is steam at 100°C, the millivoltmeter reads 4mV. What is the maximum temperature which this arrangement can measure

  Options:
  A) 100${}^o$C
  B) 248${}^o$C
  C) 250${}^o$C
  D) 350${}^o$C
  Show Answer
  The correct answer is C .
• Question 1700:

  A quantity of ice at -10°C is heated until the temperature of the heating vessel is 90°C. Which of the following constants is NOT required to determine the quantity of heat supplied to the vessel?

  Options:
  A) Specific latent heat of vaporization
  B) Specific heat capacity of ice
  C) Specific latent heat of fusion
  D) Specific heat capacity of water
  Show Answer
  The correct answer is A .