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 1421:

  The impulse of a force is deduced from Newton's second law as

  Options:
  A) F = ma
  B) F = m($\frac{v-u}{t}$)
  C) F = mg
  D) F = mv - mu
  Show Answer
  The correct answer is B .
• Question 1422: A temperature scale has a lower fixed point of 40mm and a upper fixed point of 200mm. What is the reading on this scale when a thermometer reads 60^oC? Options:
  A) 33.3mm
  B) 36.0mm
  C) 96.0mm
  D) 136.0mm
  Show Answer
  The correct answer is D .
• Question 1423: An object placed at the bottom of a well full of clear water appears closer to the surface due to? Options:
  A) diffraction
  B) reflection
  C) refraction
  D) polarization
  Show Answer
  The correct answer is C .
• Question 1424: An object is embedded in a block of ice, 10 cm below the plane surface. if the refractive index of the ice is 1.50, the apparent depth below the surface is Options:
  A) 2.50 cm
  B) 6.67 cm
  C) 7.50 cm
  D) 7.63 cm
  Show Answer
  The correct answer is B .
• Question 1425: Heat transfer by convection will take place is one the following substance. Options:
  A) Stone
  B) Wood
  C) Mercury
  D) Water
  Show Answer
  The correct answer is D .
• Question 1426: 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 1427: Which of the following is stored by a dry Leclanche cell? Options:
  A) Electrical power
  B) Kinetic energy
  C) Electric current
  D) Chemical energy
  Show Answer
  The correct answer is D .
• Question 1428: The property of the eye known as its power of accommodation is controlled by the Options:
  A) pupil
  B) virteous humour
  C) iris
  D) ciliary muscles
  Show Answer
  The correct answer is D .
• Question 1429: 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 1430: In a nuclear fusion process, four protons each of mass M_p were fused to produce a nucleus X of mass M_x. Which of the following equations is CORRECT? Options:
  A) 4M_p > M_x
  B) 4M_p = M_x
  C) 4M_p< M_x
  D) M_p > M_x
  Show Answer
  The correct answer is B .