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Optical Properties of Materials

Description: This quiz will test your understanding of the optical properties of materials.
Number of Questions: 15
Created by:
Tags: materials science optics
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What is the refractive index of a material?

  1. The ratio of the speed of light in a vacuum to the speed of light in the material

  2. The ratio of the speed of light in the material to the speed of light in a vacuum

  3. The angle at which light is reflected from a surface

  4. The angle at which light is refracted from a surface

Show answer
Correct Option: A
Explanation:

The refractive index of a material is a measure of how much the material bends light. It is defined as the ratio of the speed of light in a vacuum to the speed of light in the material.

What is the absorption coefficient of a material?

  1. The fraction of light that is absorbed by the material

  2. The fraction of light that is reflected by the material

  3. The fraction of light that is transmitted by the material

  4. The fraction of light that is scattered by the material

Show answer
Correct Option: A
Explanation:

The absorption coefficient of a material is a measure of how much light the material absorbs. It is defined as the fraction of light that is absorbed by the material.

What is the scattering coefficient of a material?

  1. The fraction of light that is absorbed by the material

  2. The fraction of light that is reflected by the material

  3. The fraction of light that is transmitted by the material

  4. The fraction of light that is scattered by the material

Show answer
Correct Option: D
Explanation:

The scattering coefficient of a material is a measure of how much light the material scatters. It is defined as the fraction of light that is scattered by the material.

What is the transmittance of a material?

  1. The fraction of light that is absorbed by the material

  2. The fraction of light that is reflected by the material

  3. The fraction of light that is transmitted by the material

  4. The fraction of light that is scattered by the material

Show answer
Correct Option: C
Explanation:

The transmittance of a material is a measure of how much light the material transmits. It is defined as the fraction of light that is transmitted by the material.

What is the reflectance of a material?

  1. The fraction of light that is absorbed by the material

  2. The fraction of light that is reflected by the material

  3. The fraction of light that is transmitted by the material

  4. The fraction of light that is scattered by the material

Show answer
Correct Option: B
Explanation:

The reflectance of a material is a measure of how much light the material reflects. It is defined as the fraction of light that is reflected by the material.

What is the emissivity of a material?

  1. The fraction of light that is absorbed by the material

  2. The fraction of light that is reflected by the material

  3. The fraction of light that is transmitted by the material

  4. The fraction of light that is emitted by the material

Show answer
Correct Option: D
Explanation:

The emissivity of a material is a measure of how much light the material emits. It is defined as the fraction of light that is emitted by the material.

What is the absorptivity of a material?

  1. The fraction of light that is absorbed by the material

  2. The fraction of light that is reflected by the material

  3. The fraction of light that is transmitted by the material

  4. The fraction of light that is scattered by the material

Show answer
Correct Option: A
Explanation:

The absorptivity of a material is a measure of how much light the material absorbs. It is defined as the fraction of light that is absorbed by the material.

What is the reflectivity of a material?

  1. The fraction of light that is absorbed by the material

  2. The fraction of light that is reflected by the material

  3. The fraction of light that is transmitted by the material

  4. The fraction of light that is scattered by the material

Show answer
Correct Option: B
Explanation:

The reflectivity of a material is a measure of how much light the material reflects. It is defined as the fraction of light that is reflected by the material.

What is the transmissivity of a material?

  1. The fraction of light that is absorbed by the material

  2. The fraction of light that is reflected by the material

  3. The fraction of light that is transmitted by the material

  4. The fraction of light that is scattered by the material

Show answer
Correct Option: C
Explanation:

The transmissivity of a material is a measure of how much light the material transmits. It is defined as the fraction of light that is transmitted by the material.

What is the scattering cross section of a material?

  1. The area of a sphere that is equal to the area of the material that scatters light

  2. The area of a sphere that is equal to the area of the material that absorbs light

  3. The area of a sphere that is equal to the area of the material that reflects light

  4. The area of a sphere that is equal to the area of the material that transmits light

Show answer
Correct Option: A
Explanation:

The scattering cross section of a material is a measure of how much light the material scatters. It is defined as the area of a sphere that is equal to the area of the material that scatters light.

What is the absorption cross section of a material?

  1. The area of a sphere that is equal to the area of the material that scatters light

  2. The area of a sphere that is equal to the area of the material that absorbs light

  3. The area of a sphere that is equal to the area of the material that reflects light

  4. The area of a sphere that is equal to the area of the material that transmits light

Show answer
Correct Option: B
Explanation:

The absorption cross section of a material is a measure of how much light the material absorbs. It is defined as the area of a sphere that is equal to the area of the material that absorbs light.

What is the reflection cross section of a material?

  1. The area of a sphere that is equal to the area of the material that scatters light

  2. The area of a sphere that is equal to the area of the material that absorbs light

  3. The area of a sphere that is equal to the area of the material that reflects light

  4. The area of a sphere that is equal to the area of the material that transmits light

Show answer
Correct Option: C
Explanation:

The reflection cross section of a material is a measure of how much light the material reflects. It is defined as the area of a sphere that is equal to the area of the material that reflects light.

What is the transmission cross section of a material?

  1. The area of a sphere that is equal to the area of the material that scatters light

  2. The area of a sphere that is equal to the area of the material that absorbs light

  3. The area of a sphere that is equal to the area of the material that reflects light

  4. The area of a sphere that is equal to the area of the material that transmits light

Show answer
Correct Option: D
Explanation:

The transmission cross section of a material is a measure of how much light the material transmits. It is defined as the area of a sphere that is equal to the area of the material that transmits light.

What is the extinction coefficient of a material?

  1. The sum of the absorption coefficient and the scattering coefficient

  2. The difference between the absorption coefficient and the scattering coefficient

  3. The product of the absorption coefficient and the scattering coefficient

  4. The quotient of the absorption coefficient and the scattering coefficient

Show answer
Correct Option: A
Explanation:

The extinction coefficient of a material is a measure of how much light the material absorbs and scatters. It is defined as the sum of the absorption coefficient and the scattering coefficient.

What is the scattering efficiency of a material?

  1. The ratio of the scattering cross section to the geometric cross section

  2. The ratio of the absorption cross section to the geometric cross section

  3. The ratio of the reflection cross section to the geometric cross section

  4. The ratio of the transmission cross section to the geometric cross section

Show answer
Correct Option: A
Explanation:

The scattering efficiency of a material is a measure of how efficiently the material scatters light. It is defined as the ratio of the scattering cross section to the geometric cross section.

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