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Physics department
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Physical laws are the conclusions drawn on the basis of long year scientific observations and experiments which are repeated again and again under different conditions to reach the assumptions which can be accepted worldwide. We all know our world works on some principles and these principles are drawn by our scientists in the form of certain physical laws.Important Laws of Physics
1.Archimedes Principle
The principle was discovered in 3rd century B.C. by the Greek mathematician. Archimedes. It states that when a body is partially or totally immersed in a fluid, it experiences an upward thrust equal to the weight of the fluid displaced by it that i.e. its apparent loss of weight is equal to the weight of liquid displaced.
2. Avagadro’s Law
In 1811 it was discovered by an Italian Scientist Anedeos Avagadro. This law states that equal volume of all gases under the same conditions of temperature and pressure contain equal number of molecules.
3. Ohm's Law
It states that the current passing through a conductor between two points is directly proportional to the potential difference across the two points provided the physical state and temperature etc. of the conductor does not change.