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 1271: A temperature scale has a lower fixed point of 40mm and a upper fixed point of 200mm. What is the reading on this scale when a thermometer reads 60^oC? Options:
  A) 33.3mm
  B) 36.0mm
  C) 96.0mm
  D) 136.0mm
  Show Answer
  The correct answer is D .
• Question 1272:

  A gas at a volume of V${}_0$ in a container at pressure p${}_0$ is compressed to one-fifth of its volume. What will be its pressure if the magnitude of its original temperature T is constant?

  Options:
  A) $\frac{p_0}{5}$
  B) $\frac{4p_0}{5}$
  C) p${}_0$
  D) 5P${}_0$
  Show Answer
  The correct answer is D .
• Question 1273:

  A solid weighs10.00N in air,6N when forcefully immersed in water, and 7.0N when fully immersed in a liquid, X. Calculate the relative density of the liquid X.

  Options:
  A) $\frac{5}{3}$
  B) $\frac{4}{3}$
  C) $\frac{3}{4}$
  D) $\frac{7}{10}$
  Show Answer
  The correct answer is C .
• Question 1274: The following types of waves are transverse EXCEPT Options:
  A) light waves
  B) radio waves
  C) sound waves
  D) surface waves on water
  E) X-rays
  Show Answer
  The correct answer is C .
• Question 1275:

  

  Which of the following figures gives the correct resultant R of two vectors P and Q?

  Options:
  A) I
  B) II
  C) III
  D) IV
  E) V
  Show Answer
  The correct answer is D .
• Question 1276: Which of the following electromagnetic waves has the shortest wavelength? Options:
  A) Radio waves
  B) X-rays
  C) Infra-red
  D) Blue light
  E) Ultraviolet
  Show Answer
  The correct answer is B .
• Question 1277: A stone of mass 1kg is dropped from a height of 10m above the ground and falls freely under gravity. Its kinetic energy 5m above the ground is then equal to Options:
  A) its kinetic energy on the ground
  B) twice its initial potential energy
  C) its initial potential energy
  D) half its initial potential energy
  Show Answer
  The correct answer is D .
• Question 1278:

  I. All the three forces must be concurrent.

  II. The upward force is equal to the downward force.

  III. The algebraic sum of the moment about any point must be zero.which of the above conditions must hold for a body acted upon by a system of three coplanar forces equilibrium?

  Options:
  A) I and II only
  B) I and III only
  C) II and III only
  D) I, II and III
  Show Answer
  The correct answer is B .
• Question 1279: Two lamps are rated 40W and 220V each are connected in series. The total power dissipated in both lamps is Options:
  A) 10W
  B) 20W
  C) 40W
  D) 80W
  E) None of the above
  Show Answer
  The correct answer is D .
• Question 1280: A 120V, 60W lamp is to be operated on 220V ac supply mains. calculate the value of non inductive resistance that would be required to ensure that the lamp is run on correct value Options:
  A) 100Ω
  B) 200Ω
  C) 300Ω
  D) 500Ω
  Show Answer
  The correct answer is B .