Relative permittivity and permeability of a material are `epsilon_(r)` and `mu_(r)` respectively which of the following values of these quantities are allowed for a diamagnetic material ?

Options

A. `epsilon=0.5 , mu_(r )=0.5`
B. `epsilon_(r )=1.5 ,mu_(r )=0.5`
C. `epsilon_(r )=0.5 mu_(r )=1.5`
D. `epsilon_(r )=1.5 mu_(r )=1.5`

Answer

B

Explanation

For any material `epsilon_(r ) gt 1` hence (a) and (c ) are not possible for a diamagnetic material `mu_(r ) lt 1` hence only (b)represents a diamagnetic material