Question

Of the following quantities, which one has dimensions different from the remaining three
a. Energy per unit volume
b. Force per unit area
c. Product of voltage and charge per unit volume
d. Angular momentum

Answer 1

Answer:

D

Explanation:

L = I × omega

I = moment of inertia

has dimension mL^2

omega = V/R

has dimension LT^-1/L = T^-1

Now dimension of ang. momentum

= mL^2 × T^-1 = mL^2T^-1

And all other three have same dimension of ML^-1T^-2

Hope it help You....