Use the Following Figure Below for the Next Problem $\theta$ _m,where $\theta$

question 10

Multiple Choice

Use the following figure below for the next problem.
The figure shows a cross-
-A fiber optic is made by cladding a thin fiber core of refractive index n₁ = 1.45 with a material of refractive index n₂ = 1.38.The numerical aperture of a fiber optic is defined as NA = n_air sin $\theta$ _m,where $\theta$ _m is the maximum incident angle so that the light ray is totally internally reflected inside the fiber.The NA for the fiber is

• A)0.445
• B)0.614
• C)0.645
• D)0.407
• E)0.470

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Definitions:

Electrophoresis

A laboratory technique used to separate charged molecules, such as DNA, RNA, or proteins, based on their size and charge by applying an electric field.

Ninhydrin Test

A chemical test used for detecting the presence of amino acids, where a color change indicates a positive result.

Major Ionization State

The predominant form of a molecule at a given pH level, determined by the molecule's dissociation into ions in solution.

Histidine

An essential amino acid important in the growth and repair of tissues, often mentioned in the context of protein synthesis.