A solar water heater cannot be used to get hot water on

(a) a sunny day.       (b) a cloudy day.

(c) a hot day.             (d) a windy day

 

Answer

(b) a cloudy day.

 

Explanation

A solar water heater can only work when it is provided some solar energy.

Solar energy is provided by the sun.

 

On a cloudy day, the sun’s heat are blocked by the clouds and it can not reach the earth.

Hence, in the absence of the sun’s heat, a solar water heater can not work.

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CA Maninder Singh is a Chartered Accountant for the past 14 years and a teacher from the past 18 years. He teaches Science, Economics, Accounting and English at Teachoo