Study Material For RRB Exam: General Knowledge (G.K.) - General Science: Important Laws and Principles
Study Material For RRB Exam - General Knowledge
Section : General Science
Important Laws And Principles
- Archimedes Principle: When a body is immersed either wholly or partially in a fluid at rest, the apparent loss of weight suffered by it is equal to the weight of the fluid displaced by it.
- Avogadro’s Law : Equal volumes of all gases under the same conditions of temperature and pressure contain equal number of molecules.
- Black Body Radiation : A black body absorbs heat or radiates heat more quickly than any other body.
- Boiling Point : It increases with the increase of pressure. The presence of impurities also raises the boiling point of a liquid.
- Boyle’s Law : At constant temperature, the volume of a given mass of gas varies inversely to its pressure.
- Centre of Gravity : A body will remain at rest only if the vertical line through its centres of gravity passes through the base of support of the body.
- Charle’s Law : The volume of a given mass of gas is directly proportional to its absolute temperature when the pressure remains constant.
- Coulomb’s Law : The force between the two electric charges reduces to a quarter of its former value when the distance between them is doubled.
- Dalton’s Law : At a specific temperature and for a container of fixed volume, the total pressure of a mixture of non-reacting gases is the sum of their respective partial pressures.