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:

Point Of Insertion

A specific location where something is to be inserted, often used in surgical or medical contexts to designate where tools, implants, or other items are introduced into the body.

Muscle

A tissue in the body capable of contracting, which enables movement of the body and maintenance of posture.

Arytenoid

A pair of cartilages located in the larynx, to which the vocal cords are attached, playing a key role in speech and breathing.

Cricothyroid

Relating to the cricothyroid muscle or membrane, involved in the regulation of voice pitch.