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 491:

  A man stands 4m in front of a plane mirror. If the mirror is moved 1m towards the man, the distance between him and his new image is?

  Options:
  A) 3m
  B) 5m
  C) 6m
  D) 10m
  Show Answer
  The correct answer is C .
• Question 492: Two forces A and B act at a point. If their resultant is [given by] (B - A) in the direction of B, then Options:
  A) A and B are equal
  B) A is greater than B
  C) the angle between A and B is 0°
  D) the angle between A and B is 90°
  E) the angle between A and B is 180°
  Show Answer
  The correct answer is E .
• Question 493:

  Heat is supplied uniformly at the rate of 100W to 1.0 x 10${}^{-2}$kg of a liquid for 20 seconds. If the temperature of the liquid rises by 5${}^o$C, then the specific heat capacity of the liquid is

  Options:
  A) 2.0 x 10${}^2$Jkg${}^{-}1$K${}^{-}1$
  B) 2.0 x 10${}^2$Jkg${}^{-}1$
  C) 4.0 x 10${}^4$Jkg${}^{-}1$K${}^{-}1$
  D) 4.0 x 10${}^4$Jkg${}^{-}1$
  Show Answer
  The correct answer is C .
• Question 494: A gun of mass 2.0kg fires a bullet of mass 16 x 10 ^-2kg due East. If the bullet leaves the nozzle of the gun with a velocity of 150ms^-1, what is the recoil velocity of the gun? Options:
  A) 150ms^-1 due West
  B) 1.2 x 10^-4ms^-1 due West
  C) 1.2ms^-1 due West
  D) 1.2ms^-1 due East
  E) 150ms^-1 due East
  Show Answer
  The correct answer is C .
• Question 495: Of the following which is different from the other? Options:
  A) x-rays
  B) gamma-rays
  C) cathode rays
  D) ultra violet rays
  E) infrared rays
  Show Answer
  The correct answer is C .
• Question 496:

  An object moves in a circular path of radius 0.5m with a speed of 1ms${}^{-1}$. What is its angular velocity?

  Options:
  A) 8rads${}^{-1}$
  B) 4rads${}^{-1}$
  C) 1rads${}^{-1}$
  D) 2rads${}^{-1}$
  Show Answer
  The correct answer is D .
• Question 497: Calculate the heat energy lost when 10g of boiling water changes to ice at 0°C. [Specific latent heat of ice 336Jg^-1 . Specific heat capacity of water 4.2Jg^-1 K^-1] Options:
  A) 840J
  B) 3360J
  C) 3420J
  D) 4200J
  E) 7560J
  Show Answer
  The correct answer is E .
• Question 498:

  

  The figure above represents a frictionless pulley system in which a weight W is in equilibrium with a weight of 40N. Find the value of W.

  Options:
  A) 13.3N
  B) 20.0N
  C) 40.0N
  D) 80.0N
  Show Answer
  The correct answer is C .
• Question 499:

  A man walks 8km north and then 5km in a direction 60^o east of north. Find the distance from his starting point

  Options:
  A) 11.36km
  B) 12.36km
  C) 13.00km
  D) 14.36km
  Show Answer
  The correct answer is A .
• Question 500:

  

  In the diagram above, which of the angles ${\theta }_1$ , ${\theta }_2$ , ${\theta }_3$ and ${\theta }_4$ is the angle of deviation of the ray of light passing through the glass prism XYZ?

  Options:
  A) ${\theta }_3$
  B) ${\theta }_2$
  C) ${\theta }_1$
  D) ${\theta }_4$
  Show Answer
  The correct answer is C .