Relative permittivity and permeability of a material are ${{\rm{\varepsilon }}_r}$ and ${{\rm{\mu }}_r},$ respectively. Which of the following values of these quantities are allowed for a diamagnetic material?

${\varepsilon _r} = 1.5,\;{{\rm{\mu }}_r} = 0.5$

${\varepsilon _r} = 0.5,\;{{\rm{\mu }}_r} = 1.5$

${\varepsilon _r} = 0.5,{{\rm{\mu }}_r} = 0.5$

${\varepsilon _r} = 1.5,{{\rm{\mu }}_r} = 1.5$

NEET UG PHYSICS MCQ: MAGNETISM AND MATTER

1 Medium

1 of 1

Understanding +4 | -1

Relative permittivity and permeability of a material are

{\mathrm{\varepsilon }_r}

and

{\mathrm{\mu }_r},

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

View answer and explanation

Correct option: B

{\varepsilon _r} = 1.5,\;{\mathrm{\mu }_r} = 0.5

Option B is correct. For a diamagnetic material, the relative permittivity can be greater than 1, and the relative permeability must be less than 1.

Practice All Chapter MCQs →

\vec A = 2\vec i - 3\vec j + 6\vec k\,{m^2}

\vec B = - 3\vec i + \vec j + 2\vec k\,\left( {Wb/{m^2}} \right)

250\;joule

10\;kg

50\;Hz

7.5\;gm/c{m^3}

M

B