A Light Beam Has Speed C in Vacuum and Speed

question 92

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 = cv.
• B)n = (v/c)².
• C)n = v/c.
• D)n = c/v.
• E)n = (c/v)².

---

Definitions:

Factual Evidence

Factual evidence is information that can be verified and objectively proven to support assertions or conclusions.

Persuasive Claims

Statements made to convince or influence an audience towards a particular belief or action.

Routine Claim Messages

Communications sent to request redress or compensation for unsatisfactory products or services, typically straightforward and expected in business settings.

Persuasive Request

A message intended to convince or influence someone to take a specific action or adopt a particular viewpoint.