Question

define surface density​

Answer 1

Explanation:

: a quantity (such as mass or electricity) per unit area distributed over a surface.

Answer 2

Theory :

The areal density (also known as area density, surface density, superficial density, areic density, mass thickness, or density thickness) of a two-dimensional object is calculated as the mass per unit area. The SI derived unit is: kilogram per square metre (kg·m−2). In the paper and fabric industries, it is called grammage and is expressed in grams per square meter (gsm); for paper in particular, it may be expressed as pounds per ream of standard sizes ("basis ream").

Formulation :

It can be calculated as:

ρA = m / A

or

ρA = ρ. l

ρA = average area density

m = total mass of the object

A = total area of the object

ρ = average density

l = average thickness of the object

More & Extra :

For more information visit :

en.m.wikipedia.org > surface density.

Hope it helps you.

S Harish Abhimanyu