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 1371:

  An object 40 cm high is 30cm from the pin hole camera. If the height of the image formed is 20 cm. What is the distance of the image from the pin height?

  Options:
  A) 15 cm
  B) 70 cm
  C) 40 cm
  D) 40 cm
  Show Answer
  The correct answer is A .
• Question 1372: The d.c generator has essentially the same components as the a.c generator except the presence of? Options:
  A) slip-ring
  B) carbon brushes
  C) split ring
  D) armature
  Show Answer
  The correct answer is C .
• Question 1373: The amount of heat needed to raise the temperature of 10kg of copper by 1k is its Options:
  A) specific heat capacity
  B) heat capacity
  C) latent heat
  D) internal energy
  Show Answer
  The correct answer is B .
• Question 1374: One of the features of the fission process is that Options:
  A) its products are not radioactive
  B) it leads to chain reaction
  C) neutrons are not released
  D) the sum of the masses of the reactants equals the sum of masses of the products
  Show Answer
  The correct answer is B .
• Question 1375: 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 1376:

  A 35 kΩ is connected in series with a resistance of 40 kΩ. What resistance R must be connected in parallel with the combination so that the equivalent resistance is equal to 25 kΩ?

  Options:
  A) 40 kΩ
  B) 37.5 kΩ
  C) 45.5 kΩ
  D) 30 kΩ
  Show Answer
  The correct answer is B .
• Question 1377:

  Workdone on an object to bring it to a certain point in space is called

  Options:
  A) Gravitational potential energy
  B) Potential energy
  C) Kinetic energy
  D) Mechanical energy
  Show Answer
  The correct answer is A .
• Question 1378: The force required to make an object of mass m, travelling with velocity v, turn in a circle of radius r is Options:
  A) $\frac{m{v}^2}{r}$
  B) $\frac{m{r}^2}{v}$
  C) $\frac{mr}{v}$
  D) $\frac{mv}{r^2}$
  E) $\frac{mv}{r}$
  Show Answer
  The correct answer is A .
• Question 1379:

  

  The diagram above shows a maximum and minimum thermometer divided into three portions P, Q and R. Which of the following is true about the respective content of P,Q and R

  Options:
  A) Alcohol, mercury and alcohol
  B) Air, alcohol and mercury
  C) Mercury, alcohol and mercury
  D) Air, mercury and alcohol
  Show Answer
  The correct answer is A .
• Question 1380: A quantity of sungas at -133 occupies 1/3m³ under pressure 1.4 x 10⁵ Nm^-2. if the gas occupies 31 m^-2 at 37^oC, its pressure will be Options:
  A) 1.26 x 10³Nm^-2
  B) 3.3 x10⁴Nm^-2
  C) 1.35 x 10⁴Nm^-2
  D) 2.2 x 10⁴Nm^-2
  E) 10⁵Nm^-2
  Show Answer
  The correct answer is B .