Question

Aditya suggests his family to install a solar water heater at their residence. But some of the family members were in favour of installing an electric geyser. Ultimately the family got water heater installed.

(a) Which according to you was correct? Give two reasons in support of your answer. 

(b) Mention two possible changes in the thinking of the family members because of the arguments given by Aditya.

Answer 1

(a) Solar water heater would have been a good choice No moving parts, little maintenance, work satisfactorily without any focusing device. Can be set up in remote and inaccessible hamlets or sparsely inhabited areas 

(b) Possible changes in family's thinking 

(i) Harnessing the natural and greatest source of energy, the sun 

(ii) Savings on electricity bills in the future