Hint— Your answer must include: working of a solar device using reflectors/solar cell. Limitations: Available during day time/sunny days. Requires huge installations and costly. To overcome limitation: Use of solar cell.
Solar cookers have limited utility at places which remain cloudy or have longer winters; e.g., hilly areas.
Advantages of using a solar cooker:
(l) It cooks food without causing;any kind of pollution.
(ii)...
(i) It can be used only at those places where wind blows for the greater part of the year.
(ii) Wind speed should be higher than 15 km/h to rotate the...
Solar cell panel comprises of a large number of solar cells and can provide a much higher power for many uses. Two materials used for making solar cell are Gallium...
The difference in temperature between warm surface water heated by the sun and colder water found at ocean depth is a source of energy called ocean thermal energy. The difference...
Manuscripts were documents or books written by hand.
They were not used widely because :
(i) They could not satisfy the ever-increasing demand for books.
(ii) They were expensive as copying was an...
(i) India is a tropical country, therefore it receives sunlight in abundance throughout the year.
(ii) Solar plant can be easily established in rural and remote areas.
(iii) It will minimise the...
