Relative permittivity and permeability of a material are and respectively. Which of the following values of these quantities are allowed for a diamagnetic material?

The values of relative permeability of diamagnetic materials are slightly less than 1 and ${\mathrm{\epsilon }}_{\mathrm{r}}$ will be greater than or equal to 1.

Hence, ${\mathrm{\epsilon }}_{\mathrm{r}}=1.5,{\mathrm{\mu }}_{\mathrm{r}}=0.5$will be most appropriate for a diamagnetic substance.