The middle lamella is primarily composed of:

The height of the cone of maximum volume inscribed in a sphere of radius $R$ is

Let $P$ be a plane passing through the points $(2,1,0)$,$(4,1,1)$ and $(5,0,1)$ and $R$ be the point $(2,1,6)$. Then the image of $R$ in the plane $P$ is

Which relation is correct for an isochoric process?

$RR-21$ is a high-yielding variety of:

Which one of the following orders is not in accordance with the property stated against it?