S1: Systematic and ceaseless efforts are being made to tap scientifically the abundant solar energy available in the country.

S6: Installation of solar thermal systems and devices has helped to save or generate energy to the extent of 350 kWh per annum.

P: These include cooking, water heating, water desalination, space heating, etc.

Q: A large number of applications in the area have already become commercial.

R. Efforts are also afoot to develop economically viable solar collectors for high temperature applications.

S: A simple and common mode in solar energy utilization is solar thermal conversion.

The proper sequence should be

 

Options