Sources Of Energy - 1

Source of vast energy of the Sun is the nuclear fusion of four hydrogen nuclei into a single helium nucleus going on at the centre of Sun. In the process an extraordinarily large amount of energy is released which is the energy radiated by the Sun.

A large number of solar cells connected together in a particular arrangement to deliver useful electrical power is called solar cell panel.

Energy available from the oceans is in any of three forms namely (i) ocean thermal energy, (ii) tidal energy, and (iii) sea wave energy.

Silver is the best conductor of electricity

An arrangement consisting of a number of solar cells joined together in a definite pattern is called a solar panel.

Special grade silicon is used for making solar cells.

Slurry left in a gobar gas plant after producing gobar gas can be used as a manure.

Reflectors (mirror) are used to focus the sun rays along with heat radiation inside the box to achieve high temperature.

The box type solar cooker have a range 100- 140°C

All the points given are the disadvantages of solar energy.