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 2391: Which type of radiation does not NOT originate within the nucleus? Options:
  A) alpha
  B) beta
  C) gamma
  D) neutron
  E) x-rays
  Show Answer
  The correct answer is E .
• Question 2392: A platinum resistance thermometer wire has a resistance of 5 ohms at 0^oC and 5.5 ohms at 100^oC. Calculate the temperature of the wire when the resistance is 5.2 ohms Options:
  A) 80^oC
  B) 60^oC
  C) 40^oC
  D) 10^oC
  Show Answer
  The correct answer is C .
• Question 2393:

  When blue and green colours of light are mixed, the resultant colour is

  Options:
  A) cyan
  B) magenta
  C) black
  D) yellow
  Show Answer
  The correct answer is A .
• Question 2394: A good electric cell should have the following except Options:
  A) A minimum of polarization effect
  B) A long life
  C) A cheap and safe electrolytes
  D) Cost and dangerous of the cell
  Show Answer
  The correct answer is D .
• Question 2395: In a common emitter configuration, the output voltage is through the Options:
  A) Resistor
  B) Base
  C) Collector
  D) Emitter
  Show Answer
  The correct answer is D .
• Question 2396:

  

  The value of the series resistor required to convert the above galvanometer into a voltmeter with a full range deflection of 15V is

  Options:
  A) 985 ohms
  B) 990 ohms
  C) 995 ohms
  D) 1000 ohms
  E) 1005 ohms
  Show Answer
  The correct answer is C .
• Question 2397: The difference between sound waves and light waves is that sound waves Options:
  A) are transverse while light waves are longitudinal
  B) require a medium to travel while light waves does not
  C) can be diffracted but light waves cannot
  D) cannot be reflected but light waves can
  Show Answer
  The correct answer is B .
• Question 2398: The speed of light in air is 3 x 10⁸ms^-1. What is the speed in glass with a refractive index of 1.50? Options:
  A) 1.5 x 10⁸ms^-1
  B) 3.0 x 10⁸ms^-1
  C) 2.0 x 10⁸ms^-1
  D) 6.0 x 10⁸ms^-1
  Show Answer
  The correct answer is C .
• Question 2399:

  ²³₁₁Na + Proton → ^p_qX + alpha particle

  What are the values of p and q respectively in the equation above?

  Options:
  A) 10 and 20
  B) 12 and 24
  C) 20 and 10
  D) 24 and 12
  Show Answer
  The correct answer is C .
• Question 2400:

  A relative density bottle has a mass of 19 g when empty. When it is completely filled with water, its mass is 66 g. What will be its mass if completely filled with alcohol of relative density 0.8?

  Options:
  A) 47 g
  B) 52.8 g
  C) 37.6 g
  D) 56.6 g
  Show Answer
  The correct answer is D .