The number of particles crossing a unit area perpendicular to X-axis in unit time is given by n= -D (n_2 - n_1)/(x_2 - x_1). Where, n_1 and n_2 are number of particles per unit volume for the value of x meant to x_2 and x_1 .Find the dimensions of the diffusion constant D.

The number of particles crossing a unit area perpendicular to X-axis i

1.	The number of particles crossing a unit area perpendicular to X-axis in unit time is given by n= -D (n_2 - n_1)/(x_2 - x_1). Where, n_1 and n_2 are number of particles per unit volume for the value of x meant to x_2 and x_1 .Find the dimensions of the diffusion constant D.
Answer» `M^(@) L T^(3)` `M^(@) L^(2) T^(-4)` `M^(@) L T^(-2)` `M^(@) L^(2) T^(-1)` Answer :D