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Nature of Physical Laws

Science has many disciplines, physics being one of them.

The word physics has its origin in a Greek word, which means ‘nature’. Physics seeks the ultimate truth about the physical world. The main goal of physics is to seek out and understand the basic laws of nature upon which all physical phenomena depend.

Physics is an empirical study. Everything that is known about the physical world and about the principles that govern its behavior has been learnt through observations of the phenomena of nature. With every passing day, physics has brought to us deeper and deeper levels of understanding of nature. At each successive level, the basic laws or theories not only become simpler but also fewer in number. ‘Closer we get to the truth, the simpler the basic laws become’.

Any law of physics formulated should not only explain the existing facts, but should also predict future results, stand the test of experimental verification and stand the test of time. As newer theories come up and laws get formulated, greater light is thrown on the nature of surroundings and various phenomena that occur.

A clear understanding of the laws of physics and their application has extended to almost all the fields of present day life. The invention of the steam engine and the electric motor resulted in the birth of engineering and resulted in the beginning of industrial revolution. The study of semiconductors made possible the invention of radios, television, calculators, computers and artificial satellites and tele-communication.

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