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 2331: The rise or fall of a liquid in a narrow tube is because of the Options:
  A) viscosity of the liquid
  B) surface tension of the liquid
  C) friction between the walls of the tube and the liquid
  D) osmotic pressure of the liquid
  Show Answer
  The correct answer is C .
• Question 2332: A plane inclined at an angle at 30^o to the horizontal has an efficiency of 50%. The force parallel to the plane required to push a load of 120 N uniformly up the plane is Options:
  A) 40√3N
  B) 60N
  C) 120N
  D) 200N
  E) 240N
  Show Answer
  The correct answer is C .
• Question 2333:

  A relative density bottle has a mass of 19 g when empty. When it is completely filled with water, its mass is 66 g. What will be its mass if completely filled with alcohol of relative density 0.8?

  Options:
  A) 47 g
  B) 52.8 g
  C) 37.6 g
  D) 56.6 g
  Show Answer
  The correct answer is D .
• Question 2334:

  

  The figure above shows displacement-time graphs for three different motions. which of the following statements is correct

  Options:
  A) graph 2 corresponds to the highest velocity
  B) graph 1 corresponds to zero gravity
  C) graph 3 corresponds to a particle moving in the negative x direction
  D) graph 2 corresponds to a particle moving in the positive x direction
  Show Answer
  The correct answer is D .
• Question 2335: At constant pressure, the density of a fixed mass of gas is Options:
  A) constant with temperature
  B) proportional to its volume
  C) inversely proportional to its temperature
  D) independent of its volume
  Show Answer
  The correct answer is C .
• Question 2336:

  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 2337: X rays can be used in the study of crystal structure because they Options:
  A) have a very long-reaching wavelength
  B) have extremely short wavelength
  C) are invisible
  D) are very fast
  Show Answer
  The correct answer is B .
• Question 2338:

  A simple pendulum, has a period of 5.77 seconds. When the pendulum is shortened by 3 m, the period is 4.60 seconds. Calculate the new length of the pendulum

  Options:
  A) 5.23 m
  B) 6.42 m
  C) 4.87 m
  D) 7.26 m
  Show Answer
  The correct answer is A .
• Question 2339: When a biro pen rubbed on a dry silk cloth is moved very close to a piece of paper on a dry table, the pen is found to pick up the paper. This is because Options:
  A) both the pen and the cloth are magnetized
  B) the pen is magnetized but the cloth is not
  C) the pen is charged while the cloth is magnetized
  D) both the pen and the cloth are charged
  Show Answer
  The correct answer is D .
• Question 2340:

  Calculate the mass of ice that would melt when 2kg of copper is quickly transferred from boiling water to a block of ice without heat loss (specific heat capacity of copper = 400Jkg${}^1$k${}^{-1}$, latent heat of fusion of ice = 3.3 x 10${}^5$Jkg${}^{-1}$)

  Options:
  A) $\frac{8}{33}$kg
  B) $\frac{3.3}{80}$kg
  C) $\frac{80}{33}$kg
  D) $\frac{3.3}{8}$kg
  Show Answer
  The correct answer is A .