Last seen: Sep 30, 2021
The solar radiation which is absorbed by the car is the basis for the green house effect.
The phenomenon whereby the earth’s atmosphere traps solar radiation, caused by the presence in the atmosphere of gases such as carbon dioxide, water v...
Formula: mst = 5 gm x 4.2 x 40 = 840.
Methane is the known biogas.
Solar energy, wind energy are the examples of renewable sources. Coal, petroleum, fuel are the examples of non-renewable sources.
Turbine is one which converts the mechanical energy into electrical energy. Hydroelectric power is generated using turbines which converts air pressur...
When wood is compressed for a number of years inside the earth, it becomes charcoal. By using the charcoal, we can produce the biogas. Methane is the ...
Charcoal is a better fuel than wood, because it has high thermal capacity than wood.
High tides of sea, which can be used to generate power by using the turbine. A turbine converts mechanical energy into electrical energy.
The power which is generated using wind energy is not much efficient and also we cant get the power generation all the times.
Alcohol is made from sugar. It is manufactured in large quantities by fermentation of sugar.
It is not good to burn animal dung directly as a fuel because (i) Animal dung contains important elements like nitrogen and phosphorus which are req...
Advantages (i) It is economical to use because the cost of electricity produced by using geothermal energy is almost half of that produced from conv...
The rise of ocean water due to the attraction of the moon is called ‘high tide’ whereas the fall of ocean water is called ‘low tide’. The tidal water ...
The water stored in a high dam has potential energy in it. When the dam water is allowed to fall down, the potential energy of stored water is convert...
Solar energy is responsible for the blowing of the wind. The sunrays fall on the whole earth. But the intensity of sunrays is much more stronger near ...
Solar cells are made from semi-conductor materials like silicon and gallium. To make solar cells, the wafers of semiconductor materials containing imp...
The property of glass is made use of in constructing green-houses used for protecting green plants in very cold climate. A greenhouse is a house-like ...
A black coloured surface absorbs much more heat when compared to a white coloured surface. Hence in the designing of solar heating devices, black pain...
(i) Direct utilization of solar energy The direct utilization of solar energy can be done either by collecting it as heat or by converting it direct...