The Speed of Light in a Certain Material Is Measured $2.2 \times 10 ^ { 8 } \mathrm {~m} / \mathrm { s }$

question 47

Multiple Choice

The speed of light in a certain material is measured to be $2.2 \times 10 ^ { 8 } \mathrm {~m} / \mathrm { s }$ . What is the index of refraction of this material? $\left( c = 3.0 \times 10 ^ { 8 } \mathrm {~m} / \mathrm { s } \right)$

• A) \(1.8\)
• B) \(1.1\)
• C) \(1.4\)
• D) \(1.2\)
• E) \(1.6\)

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Definitions:

Lamellar Granules

Secretory organelles found in the epidermis that release lipids to form a barrier to water and external agents.

Stratum Lucidum

A thin, transparent layer of the epidermis located just above the stratum granulosum and below the stratum corneum, most evident in thickened skin of palms and soles.

Thick Skin

A type of skin that contains five layers and is found in areas of high abrasion like the palms of the hands and soles of the feet.

Stratum Corneum

The outermost layer of the epidermis, comprised of dead cells that provide a barrier against the external environment.