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 1361: Shadows and eclipse result from the Options:
  A) Reflection of light
  B) Rectilinear propagation of light
  C) Diffraction of light
  D) Refraction of light
  Show Answer
  The correct answer is B .
• Question 1362:

  A safety precaution designed to prolong the life of a lead acid accumulator is

  Options:
  A) By topping up the cells with concentrated acid
  B) The use of naked flame when charging the battery
  C) Keeping the specific gravity of the electrolyte within specified range
  D) By connecting wires to the terminals directly when testing the level of charging
  Show Answer
  The correct answer is C .
• Question 1363: An object is projected with a velocity of 80ms^-1 at an angle of 30^o to the horizontal.The maximum height reached is Options:
  A) 20m
  B) 80m
  C) 160m
  D) 320m
  Show Answer
  The correct answer is B .
• Question 1364:

  A step-down transformer is used on a 2.2 kV line to deliver 110 V. How many turns are on the primary windings if the secondary has 25 turns?

  Options:
  A) 20
  B) 250
  C) 200
  D) 500
  Show Answer
  The correct answer is D .
• Question 1365: A cell has an open circuit voltage V₁ and a closed circuit voltage V₂ when a current is flowing through it. Therefore, the internal resistance of the cell is Options:
  A) $\frac{V_2}{I}$
  B) $\frac{V_1}{I}$
  C) $\frac{(V_1+V_2)}{I}$
  D) $\frac{(V_1-V_2)}{I}$
  E) $\frac{(V_2-V_1)}{I}$
  Show Answer
  The correct answer is E .
• Question 1366: In the microscope, the eyepiece lens merely acts as? Options:
  A) an inverter
  B) a refiner
  C) a diminisher
  D) a magnifier
  Show Answer
  The correct answer is D .
• Question 1367:

  

  In the diagram above , if the magnetic field points into the paper and the force on a current - carrying conductor points upwards, what is the direction of the current?

  Options:
  A) Upwards
  B) Downwards
  C) Right
  D) Left
  Show Answer
  The correct answer is D .
• Question 1368: Particles of mass 10^-2kg is fixed to the tip of a fan blade which rotates with angular velocity of 100rad^-1. If the radius of the blade is 0.2m, the centripetal force is Options:
  A) 2 N
  B) 20 N
  C) 200 N
  D) 400 N
  Show Answer
  The correct answer is B .
• Question 1369:

  

  In the diagram given the hanging mass m₂ is adjusted until m₁ is on the verge of sliding. The coefficient of static

  Options:
  A) $\frac{m_1}{m_2}$
  B) $\frac{m_{1}g}{m_2}$
  C) $\frac{m_2}{m_1}$
  D) $\frac{m_{2}g}{m_1}$
  Show Answer
  The correct answer is C .
• Question 1370:

  In order to view the sun, the most suitable instrument to use is?

  Options:
  A) helioscope
  B) telescope
  C) stroboscope
  D) sun meter
  Show Answer
  The correct answer is A .