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 911:

  A cell whose internal resistance is 0.55$\mathrm{\Omega }$ delivers a current of 4 A to an external resistor. The lost voltage of the cell is?

  Options:
  A) 4.00 V
  B) 2.20 V
  C) 0.15 V
  D) 8.00 V
  Show Answer
  The correct answer is B .
• Question 912: If the magnification of a virtual image formed by an object 10cm from a convex less is 3, then the focal length of the lens is Options:
  A) 10cm
  B) 20cm
  C) 25cm
  D) 15cm
  Show Answer
  The correct answer is D .
• Question 913: If the first position of resonance in a resonance tube is 18.0cm from the open end, the distance from the open end to the next position of resonance will be Options:
  A) 24.0cm
  B) 27.0cm
  C) 36.0cm
  D) 45.0cm
  E) 54.0cm
  Show Answer
  The correct answer is E .
• Question 914: The r.m.s value of a supply voltage is quoted at 200v. What is the approximate peak value of the voltage? Options:
  A) 200volts
  B) 300volts
  C) 283volts
  D) 250volts
  Show Answer
  The correct answer is C .
• Question 915:

  

  Calculate the refractive index of the material for the glass prism in the diagram above

  Options:
  A) ^√2/₂
  B) ⁴/₃
  C) √2
  D) ³/₂
  Show Answer
  The correct answer is C .
• Question 916:

  A gas occupies a certain volume at 27°C. At what temperature will its pressure remains constant?

  Options:
  A) 54°C
  B) 108°C
  C) 150°C
  D) 327°C
  E) 600°C
  Show Answer
  The correct answer is D .
• Question 917: What happens to the rays in a parallel beam of light? Options:
  A) They diverge as they travel
  B) they intersect
  C) They converge as they travel
  D) They meet at infinity.
  Show Answer
  The correct answer is D .
• Question 918: A certain far - sighted person cannot see object that are closer to the eye than 50 cm clearly. Determine the power of the converging lens which will enable him to see at 25 cm Options:
  A) 0.06 D
  B) 0.02 D
  C) 0.03 D
  D) 0.04 D
  E) no option is correct
  Show Answer
  The correct answer is E .
• Question 919:

  A body is uniformly accelerated from rest. Which of the following quantities vary/varies linearly with the square of the time? I. Displacement

  II. Velocity

  III. Momentum

  Options:
  A) I only
  B) II only
  C) III only
  D) I and II only
  E) II and Ill only
  Show Answer
  The correct answer is A .
• Question 920: The force of attraction between two point masses is 10^-4N when the distance between them is 0.18m. If the distance is reduced to 0.06m, calculate the force. Options:
  A) 1.1 x 10^-5N
  B) 3.3 x 10^-5N
  C) 3.0 x 10^-4N
  D) 9.0 x 10^-4N
  Show Answer
  The correct answer is D .