What is solar energy ? Describe the two effective processes to tap solar energy.
(i) Solar thermal technology has some relative advantages over all other non-renewable energy sources.
(ii) It is cost competitive, environment friendly and easy to construct.
(iii) Solar energy is 7 per cent more effective than coal or oil based plants and 10 per cent more effective than nuclear plants.
(iv) It is generally used more in appliances like heaters, crop dryers, cookers, etc.