Fill ups
The value of `mu_0` in free space is…………….

What is the value of permeability of free space?

How does the relation c=frac(1)(sqrt(mu_0 epsilon_0) indicate that the velocity of all types of e.m. waves in free space is the same?

Fill ups The empty space in hcp is……………and that in the bcc packing is…………… .

Can the potential function have a maximum or minimum in free space?

Write an expression for speed of e.m. waves in free space.

What is the velocity of e.m. waves in free space?

The unit of permittivity of free space (E_0) is :

The value of electrostatics force constant in free space is .................. .