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 1021: blowing air over a liquid aids evaporation by Options:
  A) increasing its surface area
  B) decreasing its vapour pressure
  C) increasing its temperature
  D) decreasing its density
  Show Answer
  The correct answer is A .
• Question 1022:

  The following are parts of the eye

  I. Retina

  II. Pupil

  III. Iris

  The correct equivalent in the camera in the same order are

  Options:
  A) Diaphragm, Aperture, film
  B) Aperture, Diaphragm, Film
  C) Film, Diaphragm, Aperture
  D) Film, Aperture, Diaphragm
  Show Answer
  The correct answer is D .
• Question 1023:

  A projectile is projected with an initial velocity u, at an angle θ to the horizontal. The maximum height attained is.

  Options:
  A) U² sin $\frac{\theta }{g}$
  B) 2U² sin² $\frac{\theta }{g}$
  C) U sin² $\frac{\theta }{g}$
  D) U² sin²$\frac{\theta }{g}$
  Show Answer
  The correct answer is D .
• Question 1024: A series RLC circuit is said to resonate, when Options:
  A) capacitive reactance is zero
  B) conductance is maximum
  C) current is minimum
  D) impedance is minimum
  E) inductive reactance is zero
  Show Answer
  The correct answer is D .
• Question 1025:

  

  A 50kg block is dropped from a point 10cm above as shown in the fig above. if the force constant of the spring is 4.0 x 10⁴Nm^-1, find the maximum compression of the spring [g = 10ms^-2]

  Options:
  A) 1.25m
  B) 0.50m
  C) 0.25m
  D) 0.05m
  Show Answer
  The correct answer is B .
• Question 1026:

  The inner diameter of a test tube can be measured accurately using a?

  Options:
  A) micrometer screw gauge
  B) pair of dividers
  C) meter rule
  D) pair of vernier calipers
  Show Answer
  The correct answer is D .
• Question 1027: At what position will an object be placed in front of a concave mirror in order to obtain an image at infinity? Options:
  A) At the pole of the mirror
  B) At the principal focus
  C) at the center of the curvature
  D) Between the principal focus and the center of curvature
  Show Answer
  The correct answer is B .
• Question 1028: Two points on a velocity time-graph have coordinates (5s, 10ms^-1) and (20s, 20ms^-1). Calculate the mean acceleration between the two points Options:
  A) 0.67ms^-1
  B) 0.83ms^-1
  C) 1.50ms^-1
  D) 2.00ms^-1
  Show Answer
  The correct answer is A .
• Question 1029: The half-life of a radioactive substance is 2 seconds. Calculate the decay constant. Options:
  A) 2.890 s^-1
  B) 1 .445 s^-1
  C) 0.576 s^-1
  D) 0.347s^-1
  E) 0.152 s^-1
  Show Answer
  The correct answer is D .
• Question 1030: Cancerous cells can be destroyed by Options:
  A) ultraviolet rays
  B) alpha particules
  C) x - rays
  D) infrared rays
  Show Answer
  The correct answer is C .