A Light Beam Has Speed $c$ In Vacuum and Speed $v$ In a Certain Plastic

question 80

Multiple Choice

A light beam has speed $c$ in vacuum and speed $v$ in a certain plastic. The index of refraction $n$ of this plastic is

• A) \(n = ( c / v ) ^ { 2 }\).
• B) \(n = c / v\).
• C) \(n = ( v / c ) ^ { 2 }\).
• D) \(n = v / c\).
• E) \(n = c v\).

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Definitions:

Reagent Strip

A diagnostic strip used for conducting tests on various bodily fluids, such as urine, by changing color to indicate the presence or concentration of certain substances.

Ketones

Organic compounds characterized by a carbonyl group attached to two carbon atoms, can be produced in the body during fat metabolism.

Urine Sample

A sample of urine collected for medical testing to evaluate and diagnose health conditions.

Refractometer

An optical instrument that measures the refraction, or bending, of light as it passes through a liquid.