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 1701: The gravitational field intensity at a location X, in space, is two-fifths of its value on the earth’s surface. If the weight of an object at X is 4.80N. what is its weight on the earth? Options:
  A) 1.92N
  B) 2.88N
  C) 6.72N
  D) 8.00N
  E) 12.00N
  Show Answer
  The correct answer is E .
• Question 1702: Which of the following media allow the transmission of sound wave through them i. Air. ii. Liquids. iii. Solids. Options:
  A) i and ii only
  B) i and iii only
  C) ii and iii only
  D) i,ii and iii
  Show Answer
  The correct answer is D .
• Question 1703: A current of 0.5A flows through a resistor when connected to a 40-V battery. How much energy is dissipated in 2 minutes? Options:
  A) 1200J
  B) 1500J
  C) 2400J
  D) 96000J
  Show Answer
  The correct answer is C .
• Question 1704: 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 1705: A 0 - 10mA galvanometer with a coil resistance of 30$\mathrm{\Omega }$ can be converted to a 0 - 10A ammeter by using Options:
  A) 0.03$\mathrm{\Omega }$ series resistor
  B) 0.03$\mathrm{\Omega }$ shunt resistor
  C) 9.99$\mathrm{\Omega }$ shunt resistor
  D) 9.99$\mathrm{\Omega }$ series resistor
  Show Answer
  The correct answer is B .
• Question 1706: A mirror of weight 75N is hung by a cord from a hook on the wall. If the cord makes an angle of 30^o with horizontal, the tension in the cord is Options:
  A) 100N
  B) 1500N
  C) 250N
  D) 150N
  Show Answer
  The correct answer is D .
• Question 1707: The magnitude of the resultant of two mutually perpendicular forces, F₁ and F₂ is 13N, if the magnitude of F₁ is 5N, what is the magnitude of F₂? Options:
  A) 2.6N
  B) 6.0N
  C) 12.0N
  D) 18.0N
  Show Answer
  The correct answer is C .
• Question 1708: 4g of a radioactive material of half-life 10 days is spilled on a laboratory floor. How long would it take to disintegrate 3.5g of the material? Options:
  A) 1$\frac{1}{4}$ days
  B) 8$\frac{1}{4}$ days
  C) 30 days
  D) 80 days
  Show Answer
  The correct answer is C .
• Question 1709: A man 1.5m tall is standing 3m in front of a pinhole camera whose distance between the hole and the screen is 0.1m. What is the height of the image of the man on the screen? Options:
  A) 0.05m
  B) 0.15m
  C) 0.30m
  D) 1.00m
  Show Answer
  The correct answer is A .
• Question 1710:

  

  The diagram shows lens arrangement in

  Options:
  A) A Compound Microscope
  B) astronomical telescope
  C) binocular
  D) periscope
  E) projection lantern
  Show Answer
  The correct answer is B .