An object is immersed in different liquids is same buoyant force acts on the object due to all liquids?

In what direction does the buoyant force on an object immersed in a liquid act ?

Mention two factors on which the buoyant force acting on an object depends?

Arrive at an expression for pressure at point due to a liquid.

Buoyant force exerted by different fluid on the given body is.

The human eye can focus objects at different distance by adjusting the focal length of the eye lens. This is due to