The Index of Refraction of a Certain Glass Is Measured $\left( c = 3.0 \times 10 ^ { 8 } \mathrm {~m} / \mathrm { s } \right)$

question 144

Multiple Choice

The index of refraction of a certain glass is measured to be 1.5. What is the speed of light in that glass? $\left( c = 3.0 \times 10 ^ { 8 } \mathrm {~m} / \mathrm { s } \right)$

• A) \(1.0 \times 10 ^ { 8 } \mathrm {~m} / \mathrm { s }\)
• B) \(5.0 \times 10 ^ { 8 } \mathrm {~m} / \mathrm { s }\)
• C) \(4.0 \times 10 ^ { 8 } \mathrm {~m} / \mathrm { s }\)
• D) \(3.0 \times 10 ^ { 8 } \mathrm {~m} / \mathrm { s }\)
• E) \(2.0 \times 10 ^ { 8 } \mathrm {~m} / \mathrm { s }\)

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Definitions:

Spot Rate

The existing selling or buying price of a certain currency for transactions that are completed right away.

Fair-Value Hedge

A hedge that is used to mitigate the risk of changes in the fair value of an asset, liability, or an unrecognized firm commitment.

Cost of the Hedge

The expenditure associated with implementing and maintaining a hedge against financial risk.

Fair-Value Hedge

A hedge of the exposure to changes in fair value of an asset or liability or an identified portion of such an asset or liability that is attributable to a particular risk.