Analyse the following statements related to solar water heater and answer the questions

* Hot water is taken from the upper side of the solar water heater tank.

*When heated the density of the water is changed.

(1) Explain the working of a solar water heater, based on the above statements.

  • Answer)
    • Density of water decreases when temperature increases
    • Cold water of high density will be in the bottom side of tank 
    • Cold water is
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