A Thin Film with an Index of Refraction of 1

question 31

Multiple Choice

A thin film with an index of refraction of 1.60 is placed in one of the beams of a Michelson interferometer.If this causes a shift of 8 bright fringes in the pattern produced by light of wavelength 580 nm, what is the thickness of the film?

• A)1.5 µm
• B)2.9 µm
• C)3.9 µm
• D)7.7 µm
• E)16 µm

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Definitions:

Electrophoresis

A laboratory technique used to separate DNA, RNA, or protein molecules based on their size and electrical charge by applying an electric current to a gel matrix.

Isoelectric Point

The pH at which a molecule, especially an amino acid or protein, carries no net electric charge, making it electrically neutral.

Enzymatic Resolution

A process using enzymes to separate enantiomers of a racemic mixture based on their reactivity.

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.