BUOYANCY



When a body is immersed in a fluid an upward force is exerted by the fluid,on the body. The upward force is equal to the weight of the fluid displaced by the body and is called the forces of buoyancy or simple buoyancy.
   

CENTRE OF BUOYANCY
It is a defined as the point through which the force of buoyancy is supposed to act,As the force of buoyancy is a vertical force and is equal to the weight of the fluid displaced by the body.the center of buoyancy will be the centre of gravity of the fluid displaced .



META - CENTRE 

It is the defined as the point about which a body starts oscillating when the body is tilted by small angle .The meta-centre may also be defined as the point at which the line of action of force of buoyancy will meet the normal axis of the body when the body is given is small angular displacement .





META-CENTRIC HEIGHT
The distance between the meta-centre of a floating body and the centre of gravity of the body is called meta-centric height .





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