Question

what do you understand by the term optical medium ? what are its kinds ? give two example of each kind .

Answer 1

it means any transparent medium through which light can pass through.
the types are opaque, transparent and translucent,homogeneous and heterogeneous.
opaque- books, trees.
transparent- window panes, plastic rulers
translucent- sun glasses, parchment paper
homogeneous- glass, diamond
heterogeneous- fog,clouds

Answer 2

An optical medium is a material through which electromagnetic waves propagate.

• The types of optical media are

Opaque - Books

Transparent media - Window panes

Translucent media - Sunglasses

Homogeneous media - Glass , diamond

Heterogeneous media - fog

• Examples of optical media are air, water, Glass etc.

Optical medium can be explained as

• It is a form of transmission medium.

• The propagation of electromagnetic waves can be defined by it's Permittivity and Permeability.

Intrinsic impedance of medium can be given by

η = ( Ex / Hy)

Ex and Hy are electric field and magnetic field respectively.

• when there is no electric conductivity, the expression will be

η= ( μ/ε)¹/²