Tag Archives | solar

526 words essay on the importance of Solar Energy

The sun is the source of enormous energy. The solar energy received by the total land of India is about 19 trillion kwh per day, which is about 2.2 million tonnes of oil equivalent. Solar radiation is currently being used to generate electricity via two technologies.

By |2011-07-30T06:03:01+00:00July 30, 2011|Essay|Comments Off on 526 words essay on the importance of Solar Energy

Two major drawbacks of all solar heating devices

A solar cooker consists of an insulated metal box which is painted all black from inside. A plane mirror reflector is attached to the box. The food to be cooked is placed in containers which are also painted black from outside….

By |2011-04-05T16:40:26+00:00April 5, 2011|Articles|Comments Off on Two major drawbacks of all solar heating devices

How the solar energy received by the earth is used?

Solar energy received by the earth is distributed over a large area near the poles than at the equator. Thus, the amount of energy received per unit area is more at the equator, which is consequently much warmer than the poles.

By |2011-01-07T17:14:07+00:00January 7, 2011|Environment|Comments Off on How the solar energy received by the earth is used?

How old is our Solar System ?

The age of the solar system has been estimated to be about 5000 million years with the help of radiometric dating in investigations. The method of radiometric dating is based on the phenomenon of radioactivity. We know that certain unstable nuclei break-up spontaneously into smaller and more stable nuclei.

By |2011-01-02T16:06:17+00:00January 2, 2011|Geography|Comments Off on How old is our Solar System ?

Write a short note on solar power plant

In solar power plants, steam is produced by concentrating the sun rays with the help of concave reflectors on to the pipes containing water. The steam thus produced is used to turn turbines which are connected to electricity generators.

By |2010-12-30T20:23:48+00:00December 30, 2010|Physics|Comments Off on Write a short note on solar power plant
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