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How mirror can be identified by observing the values of the magnification?

How mirror can be identified by observing the values of the magnification? If an object is placed within the focal length of a mirror, the image of the object will get magnified in case of a concave mirror, and will get diminished in case of a convex mirror. The value of magnification will be greater than 1 in case of a concave mirror, and less than 1 in case of a convex mirror.

What is Buoyancy?

What is called Buoyancy?

The ability of a fluid to exert an upward force on an object that is immersed in it called buoyancy.

The upward force that liquid or gaseous matter applies perpendicularly on an object partially or completely submerged in the liquid or gaseous matter is called buoyancy.

or,

Buoyancy is an upward force exerted by a fluid that opposes the weight of an immersed object

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