Q2 of 35 Page 8

What are the dimensions of:

A. volume of a cube of edge a,


B. volume of a sphere of radius a,


C. the ratio of the volume of a cube of edge a to the volume of a sphere of radius a?


A. Volume of cube of edge a = a3


π is dimension less


∴ Dimension is L3


B. Volume of a sphere of radius a =


π is dimensionless


∴ Dimension is L3


C. The ratio of the volume of a cube of edge a to the volume of the sphere of radius



∴ this is dimensionless


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