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Electromagnetic radiations which ranged in appearance from red to violet. He did not see beyond the visible spectrum - into the infra red and lower frequencies, nor ultra violet and higher frequencies.
It is understood that he initially defined the spectrum as consisting of 4 colours but later, to bring it in line with the musical scales, the spectrum was split into seven colours. The spectrum is, of course, a continuum, consisting not of 4 nor 7 but an infinite number of colours.
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Why is a cube a prism?
A prism has the same cross section throughout its length no matter what form it may take i.e. a cubic prism, a cuboid prism, a triangular prism, a hexagonal prism, a cylindrical prism etc.
How many faces does a hectangonal prism have?
There can be a heptagonal prism or an octagonal prism, but there is no such thing as a hectagonal prism.
What prism has a cross section which is the shape of a rhombus?
A rhombic prism or rhombohedron.A rhombic prism or rhombohedron.A rhombic prism or rhombohedron.A rhombic prism or rhombohedron.
How many more vertices does a pentagonal prism have than a rectangular prism?
A pentagonal prism has 10 vertices. A rectangular prism has 8 vertices. Therefore, a pentagonal prism has 2 more vertices than a rectangular prism.
How many bases does a prism have?
It depends on what kind of prism you mean. For example, a rectangular prism has 6 bases and a triangular prism has 5 bases. A triangular prism only has two bases.
