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 91:

  

  A uniform meter rule QR is balanced on a knife edge which is 55cm from R, when a mass of 10g is hung at P as shown above, the mass of the meter rule is (Note that QP is 10cm)

  Options:
  A) 550g
  B) 350g
  C) 70g
  D) 35g
  Show Answer
  The correct answer is C .
• Question 92: A constant force of %n acts for a % seconds on a mass of 5kg initially at rest. Calculate the final momentum Options:
  A) 125kgms−1
  B) 25kgms−1
  C) 15kgms−1
  D) 0kgms−1
  Show Answer
  The correct answer is B .
• Question 93:

  I. High thermal capacity.

  II. High sensitivity.

  III.Easy readability.

  IV. Accuracy over a wide range of temperature

  From the statement above, the qualities of a good thermometer are

  Options:
  A) I and II
  B) I, II,III and IV
  C) I, III and IV
  D) II, III and IV
  Show Answer
  The correct answer is D .
• Question 94: The pair of physical quantities consisting of vectors only are Options:
  A) momentum and power
  B) velocity and distance
  C) displacement and torgue
  D) accelaration and speed
  Show Answer
  The correct answer is C .
• Question 95: 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 96: Which of the following is most strongly deflected by magnetic field? Options:
  A) $\gamma$ - rays
  B) X- particle
  C) $\beta$ - particles
  D) X - rays
  Show Answer
  The correct answer is C .
• Question 97: A radioactive isotope has a decay constant of 10^-5s⁴. Calculate half life Options:
  A) 6.93 x 10⁵s
  B) 6.93 x 10⁵s
  C) 6.93 x10⁴s
  D) 6.93 x 10⁴s
  Show Answer
  The correct answer is C .
• Question 98: The driving mirror of a car has a radius of curvature of 1m. A vehicle behind the car is 4m from the mirror. Find the image distance behind the mirror. Options:
  A) 8/7
  B) 4/9
  C) 9/2
  D) 4/7
  Show Answer
  The correct answer is B .
• Question 99: Four lenses are being considered for use as a microscope objective. Which of the following focal lengths is most suitable? Options:
  A) -5mm
  B) +5mm
  C) -5cm
  D) +5cm
  Show Answer
  The correct answer is B .
• Question 100: The process of energy production in the sun is Options:
  A) nuclear fission
  B) nuclear fussion
  C) electron collision
  D) radioactive decay
  Show Answer
  The correct answer is B .