Question

An unpolarized light consist of

A) Infinite number of plane polarized light
B) finite number of plane polarized light
(C) Only partially plane polarized light
(D) none of above​

Answer 1

Explanation:

A) Infinite number of plane polarized ligh

Answer 2

Answer:

The correct answer is (A) Infinite number of plane polarized light.

Explanation:

• The polarisation state can contain an infinite number of components because there are an endless number of photons.
• The Stokes parameters are the most straightforward way to measure polarisation.
• The polarisation is split into horizontal, vertical, 45 degree left, 45 degree right, left circular, and right circular using Stokes parameters.
• For example, equal sums of + and - Q add up to 0. The same goes for +U and -U, as well as +V and -V.
• The light is considered to be unpolarized when the intensity is larger than zero but Q, U, and V are all zero. To add up to unpolarized, only six components are required.
• That is a very artificial scenario.
• Unpolarized light usually comes from a natural source that is unfiltered and emits photons in all directions.
• Most light sources have an unusually large number of distinct polarisation states because the number of photons per second per watt of light output is on the order of 10^19 photons.
• You can acquire >99 percent of the light in a given linear polarisation state in laser sources with a polarisation favoured element in the laser resonator.

When unpolarized light passes through a polaroid, the light wave becomes linearly polarised, with the electric field vector oscillating in a perpendicular direction to the aligned molecules (pass-axis of polaroid).

When light is reflected, the electric field vector becomes perpendicular to the plane of incidence, making it linearly polarised.

The electric field components of unpolarized light are perpendicular to the plane of incidence (shown by dots) and in the plane of incidence (represented by lines) (represented by arrows).

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