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Monday, 15 June 2026
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Physics Past Questions and Answers

Waec Physics Questions

Question 191:
The boiling point of a liquid depends on the following except the
  • A Nature of the liquid
  • B External pressure
  • C Volume of the liquid
  • D Impurities present in the liquid
  • E Degree of it's molecular cohesive force
View Answer & Explanation
Question 192:
A team trap is a component of the apparatus used in determining the specific latent heat of vaporisation of steam. In the steady steady state, the steam trap
  • A Stores the steam for future use
  • B Prevents the steam from escaping
  • C Ensures that only dry steam gets into the calorimeter
  • D Allows condensed steam to go into the calorimeter
  • E Determine the quantity of steam used
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Question 193:
a tap supplies water at 26oC while another supplies water at 82oC. If a man wishes to bathe with water at 40oC the ratio of hot mass of hot water to that of cold water required is
  • A 1:3
  • B 3:1
  • C 3:7
  • D 7:3
  • E 15:8
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Question 194:
Melting ice cools an orange drink far better than the same mass of ice-cold water because
  • A Melting ice is lower temperature than ice-cold water
  • B Water has a higher specific heat than ice
  • C Ice floats and cools the air above the drink
  • D Ice absorbs latent heat during melting
  • E Ice makes better thermal contact than water
View Answer & Explanation
Question 195:
The saturation vapour of a liquid depends on its
  • A Volume
  • B Temperature
  • C Mass
  • D Density
  • E Pressure
View Answer & Explanation