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 961: A current of 0.5 A flowing 3h Deposits 2g of metal during electrolysis. The quantity of the same metal that would be deposited by the currents of 1.5A flowing in 1h is Options:
  A) 2g
  B) 6g
  C) 10g
  D) 18g
  Show Answer
  The correct answer is A .
• Question 962:

  Determine the value of x from the nuclear reaction below:

  ${}_{86}^{222}Rn$ → ${}_{88}^{x}Ra$ + 2β + energy

  Options:
  A) 220
  B) 222
  C) 224
  D) 226
  E) 228
  Show Answer
  The correct answer is B .
• Question 963:

  

  In the Fig above, MN is a light uniform meter rule pivoted at O, the 80cm mark. A load of mass 3.0 kg is suspended on the meter rule at L, the 10cm mark. If the rule is kept in equilibrium by a string RP, fixed at P and attached to the rule at R, the 20cm mark, then the Tension T on the string is

  Options:
  A) 30N
  B) 34N
  C) 35N
  D) 60N
  E) 70N
  Show Answer
  The correct answer is E .
• Question 964: An electric heater takes 4A when operated on a 250V supply. What is the cost of the electricity consumed at 10k per kWh when the heater is used for 5 hours? Options:
  A) 10k
  B) 50k
  C) N1.00
  D) N5.00
  E) N10.00
  Show Answer
  The correct answer is B .
• Question 965: 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 966: In the process of electrification by induction, the amount of induced charge in relation to the inducing charge is the Options:
  A) same in sign and quantity
  B) same in sign but greater
  C) opposite in sign but greater
  D) opposite in sign but less
  E) opposite in sign but equal
  Show Answer
  The correct answer is E .
• Question 967: The eyeball consists of a round tough white skin called Options:
  A) Sclerotic
  B) Choroid coal
  C) Optical fiber
  D) Accommodation
  Show Answer
  The correct answer is A .
• Question 968: A metal block of mass 5kg lies on a rough horizontal platform. If a horizontal force of 8N applied to the block through its center of mass just slides the block on the platform, then the coefficient of limiting friction between the block and platform is Options:
  A) 0.16
  B) 0.63
  C) 0.80
  D) 1.60
  E) 2.00
  Show Answer
  The correct answer is A .
• Question 969: Which of the following pairs of musical instruments produce sound due to the vibration of air column? Options:
  A) Bell and piano
  B) Guitar and flute
  C) Trumpet and drum
  D) Trumpet and flute
  E) Violin and organ
  Show Answer
  The correct answer is D .
• Question 970: Which of the following pairs of musical instruments produce sound due to the vibration of air column? Options:
  A) Bell and piano
  B) Guitar and flute
  C) Trumpet and drum
  D) Trumpet and flute
  E) Violin and organ
  Show Answer
  The correct answer is D .