In surveying, it refers to the offset of the centre of the prism to the reflective section and the adjustment required to achieve an accurate reading.
Each variant of prisms has its own independent prism constant that must accounted for when taking readings.
See this link.What_is_the_difference_between_ordinary_prism_and_constant_deviation_prism
joules constant
They both have sides that are rectangular in shape. They both have a constant cross-sectional shape equal to the shape of the ends (triangle for a triangular prism; rectangle for a rectangular prism).
If you mean prism, the answer is YES. If you meant prim, I have no idea.
By definition, the circular cross-section of a cone changes linearly in width as you go along its axis. By definition, the cross-section of a prism is constant along its axis. So, by definition, a cone prism is an impossible shape.
difference between ordinary prism and constant deviation prism
See this link.What_is_the_difference_between_ordinary_prism_and_constant_deviation_prism
It is named after the type of prism used in the instrument. A constant deviation prism has the property that the angle between light entering the prism (the incident light) and light exiting the prism (the emergent light) is always the same, no matter what the angle of the incident light to the prism.
joules constant
A=1.621 ,B=8.8x10-15
Assuming that pirsim is meant to be prism, the answer is that a triangular based prism has triangular bases!
They both have sides that are rectangular in shape. They both have a constant cross-sectional shape equal to the shape of the ends (triangle for a triangular prism; rectangle for a rectangular prism).
A triangular prism is one with two triangles as the bases and 3 corresponding parallelograms as faces. The triangular prism is also a prismatic uniform polyhedron.
the dispersive power of prism can be defined as the rate of change of angle of deviation in specific spectrum of light ..
A=1.621 ,B=8.8x10-15
A prism *always* has 2 bases. In case you meant "faces" instead of "bases", the prism with the smallest number of faces is the triangular prism - which has 5 faces. If there were any fewer number of faces, the prism which become a two dimensional object.
minimum avge maintained