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 1151: Consider a thick glass tumbler and a thin glass tumbler which are made of the same kind of glass. Some hot liquid is poured into them. Which of the following statements is correct? Options:
  A) the thick tumbler is less likely to crack because it is stronger
  B) the thick tumbler is less likely to crack because it insulates the heat beter, glass being a poor conductor of heat
  C) Both tumblers are equally likely to crack because they are made of the same kind of glass
  D) the thick tumbler is more likely to crack because uneven expansion persists for a longer time within the thicker glass
  E) the thick tumbler is more likely to crack because it is heavier
  Show Answer
  The correct answer is C .
• Question 1152:

  The amount of energy required to change a kilogram of ice block into water without a change in temperature is?

  Options:
  A) specific latent heat of fusion of ice
  B) specific heat capacity of ice
  C) heat capacity of ice
  D) specific heat of vaporization of ice
  Show Answer
  The correct answer is A .
• Question 1153:

  The working of the beam balance is based on the principle of

  Options:
  A) moments
  B) conservation of energy
  C) equivalence
  D) floatation
  Show Answer
  The correct answer is A .
• Question 1154: If negative charges are induced on an electroscope and a positively charged rod is brought near the cap of the electroscope, the leaves will Options:
  A) close up
  B) become positively charged
  C) become negatively charged
  D) open further
  Show Answer
  The correct answer is A .
• Question 1155: A spectrum of sunlight is said to be impure when Options:
  A) it is made of only three colours
  B) it has no red colour in it
  C) the different colours in it overlap
  D) it does not contain white light
  Show Answer
  The correct answer is C .
• Question 1156:

  Light of wavelength 589 nm in vacuum passes through a piece of fused quartz of index of refraction n = 1.458. What is the frequency of the light in fused quartz?

  [Speed of light c = $3.00\times {10}^{8}m{s}^{-1}$]

  Options:
  A) $5.09\times {10}^{15}$Hz
  B) $5.09\times {10}^{14}$ Hz
  C) $1.77\times {10}^{15}$ Hz
  D) $1.77\times {10}^{14}$ Hz
  Show Answer
  The correct answer is B .
• Question 1157: On which of the following does the operation of a moving coil ammeter depend? i. Electromagnetic induction ii. Force on a carrying-current conductor iii. Magnetic effect of an electric current Options:
  A) i only
  B) ii only
  C) iii only
  D) ii and iii only
  E) i,ii and iii
  Show Answer
  The correct answer is B .
• Question 1158: Which of the following statements are true about the spring balance and the chemical balance? i. both are used to measure the mass of an object. ii. either of them may be used to measure the weight of an object. iii. the spring balance works on the principle of Hooke's law while the chemical balance works on the principle of moments. iv. a change in gravity does the readings of a spring balance but not that of a chemical balance. Options:
  A) i, and iv
  B) ii and iii
  C) ii and iv
  D) i, ii and iii
  E) i and iii
  Show Answer
  The correct answer is C .
• Question 1159:

  Which of the following is an example of a couple?

  Options:
  A) All of the above.
  B) The forces that are applied to the handle of a screwdriver when you twist it.
  C) The forces that are applied to a cross wench to loosen or tighten the lug nuts on a wheel of a car.
  D) The forces that are applied to the steering wheel of a car when you turn it.
  Show Answer
  The correct answer is A .
• Question 1160: What is the best method of demagnetizing a steel bar magnet? Options:
  A) Hammering
  B) Heating it
  C) Rough handling it
  D) Solenoid method
  Show Answer
  The correct answer is D .