Assertion : Linear mass density has the dimensions of `[M^(1)L^(–1)T^(0)]`.
Reason : Because density is always mass per unit volume.

What are the dimensions of linear mass density ?

Assertion: The density of the nuclei of all the atoms is same. Reason: It is because, density of nuclei is independent of mass number.

Assertion: The dimensional formula of surface energy is [M^(1)L^(2)T^(-2)] . Reason: Surface energy has same dimensions as that of potential energy.

Assertion : The coefficient of volume expansion has dimension K^(-1) . Reason : The coefficient of volume expansion is defined as the change in volume per unit volume per unit change in temperature.

Assertion: The dimensional formula of surface energy is [M^(1)L^(2)T^(-2)] . ltBrgt Reason: Surface energy has same dimensions as that of potential energy.

Assertion: The dimensional formula of surface energy is [M^(0)L^(2)T^(-2)] . Reason: surface energy has same dimensions as that of potential energy.

Assertion : Pressure has the dimensions of energy density. Reason : Energy density = ("energy")/("volume")=(["ML"^(2)"T"^(-2)])/(["L"^(3)]) =["ML"^(-1)"T"^(-2)]="pressure"

Assertion : Pressure has the dimensions of energy density. Reason : Energy density = ("energy")/("volume")=(["ML"^(2)"T"^(-2)])/(["L"^(3)]) =["ML"^(-1)"T"^(-2)]="pressure"