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 2381:

  When two objects A and B are supplied with the same quantity of heat, the temperature change in A is obtained to be twice that of B. The mass of P is half that of Q. The ratio of the specific heat capacity of A to B is

  Options:
  A) 1 : 4
  B) 4 : 1
  C) 1 : 1
  D) 2 : 1
  Show Answer
  The correct answer is C .
• Question 2382: The electromagnetic waves that are sensitive to temperature changes are Options:
  A) X-rays
  B) Gamma-rays
  C) Ultra-violet rays
  D) Infra-red rays
  Show Answer
  The correct answer is D .
• Question 2383:

  Which expression gives magnetic flux?

  Options:
  A) qVB sin$\theta$
  B) $\frac{\mu \varphi I}{2\pi r}$
  C) BA cos $\theta$
  D) -N $\frac{d\varphi }{dt}$
  Show Answer
  The correct answer is C .
• Question 2384:

  

  The diagram above show the positions of a cone. The position which can be described as neutral equilibrium is represented as

  Options:
  A) Z only
  B) X only
  C) Y and Z
  D) Y and X
  Show Answer
  The correct answer is A .
• Question 2385:

  It is known that a neutron exists in a light atomic nucleus

  Which of the following also exists in the nucleus?

  Options:
  A) An electron
  B) A β - particle
  C) β - particle
  D) proton
  Show Answer
  The correct answer is D .
• Question 2386:

  A 500W heater is used to heat 0.6kg of water from 25^oC to 100^oC in t₂ seconds. If another 1000W heater is used to heat 0.2kg of water from 10^oC to 100^oC in t, seconds, find $\frac{t_1}{t_2}$

  Options:
  A) 50
  B) 5
  C) 5/4
  D) 1/5
  Show Answer
  The correct answer is D .
• Question 2387: 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 2388: Lodestone is a natural magnet, it points at Options:
  A) N – W when suspended freely
  B) N–S when suspended freely
  C) S – E when suspended freely
  D) S–W when suspended freely
  Show Answer
  The correct answer is B .
• Question 2389:

  A cell gives a current of 0.15A through a resistance of 8$\mathrm{\Omega }$ and 0.3A. When the resistance is changed to 3$\mathrm{\Omega }$ the internal resistance of the cell is

  Options:
  A) 0.05$\mathrm{\Omega }$
  B) 1.00$\mathrm{\Omega }$
  C) 1.50$\mathrm{\Omega }$
  D) 2.00$\mathrm{\Omega }$
  E) 2.50$\mathrm{\Omega }$
  Show Answer
  The correct answer is D .
• Question 2390: Which of the following statements supports the assumption that light travels in straight lines? Options:
  A) light can be diffracted
  B) a source of light produces distinct shadows of opaque objects
  C) a source of light produces interference patterns on a suitably placed screen
  D) light can be reflected
  Show Answer
  The correct answer is B .