In a prism, why does the emergent ray always bends towards the base of the prism???

 When a ray of light passing through a rarer to a denser medium the refracted ray bends towards the normal,the the angle of refraction will be less than the angle of incidence.But when a ray light passing through a denser to a rarer medium( from glass to air) the refracted ray bends away from the normal,then the angle of emergence will be greater than the angle of incidence in the second face of the prism

In the prism the ray of light is emerging out through the second face that is from glass to air.Hence the emergent ray bends away from the normal -that is bends towards the base of the prism. 

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Because the entry and exit interfaces are not parallel.

When they?re parallel, as with a plane sheet of glass, the emergent ray is bent back to be parallel to the incident ray. When they?re not parallel however, consider an emergent ray orthogonal to the exit interface. It cannot also be orthogonal to the entry interface, and therefore the incident ray will be bent away from the internal ray, i.e. towards the base, assuming as usual that the refractive index is higher inside the prism than outside.
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This is because in glass prism, the incident ray of light is not parallel to emergent ray of light. ... This is because the refracting surfaces of the prism are not parallel to each other. Also, when the ray of light passes through the prism it bends towards its base.
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A glass prism is a transparent object having two triangular ends and three rectangular sides. The refraction of light in glass prism is different from a glass slab. This is because in glass prism, the incident ray of light is not parallel to emergent ray of light.
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In glass prism when the ray of light into it , it bend towards the base of prism because when it scatters into a spectrum (scatters into seven colours)
So, it needs more space to scatter itself and if another prism kept upside down those seven colours meet the base of first prism and again emerges to single light (white light) and continues its path
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In a prism, the emergent ray always bends towards the base of the prism because ray is coming out from denser medium to rarer medium
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When a light moves from rarer to denser it bends towards the normal.
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Due to refrraction of light since prism is denser medium and outside air is present which is rarer medium. So when light pass from denser to rarer medium it always bends away from normal.
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What????
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