Question:
The fraction of the incident electromagnetic energy reflected from a material is known as
The fraction of the incident electromagnetic energy reflected from a material is known as
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Albedo is crucial in climate studies: snow and ice have high albedo (strong reflectors), whereas forests and oceans have low albedo (strong absorbers).
Updated On: Aug 21, 2025
- acuity
- albedo
- spectral hue
- artifact
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The Correct Option is B
Solution and Explanation
Step 1: Understanding the term.
- The fraction of incoming electromagnetic radiation (such as sunlight) that is reflected by a surface is called its albedo.
- It is a dimensionless measure, expressed as a ratio or percentage, ranging from 0 (no reflection, total absorption) to 1 (total reflection).
Step 2: Checking other options.
- (A) Acuity: Refers to sharpness of vision, not related to reflection.
- (C) Spectral hue: Refers to perceived color, not reflection coefficient.
- (D) Artifact: Refers to errors or distortions in data, not reflection.
Step 3: Conclusion.
Thus, the correct term for the fraction of incident electromagnetic energy reflected from a material is: \[ \boxed{\text{Albedo (Option B)}} \]
- The fraction of incoming electromagnetic radiation (such as sunlight) that is reflected by a surface is called its albedo.
- It is a dimensionless measure, expressed as a ratio or percentage, ranging from 0 (no reflection, total absorption) to 1 (total reflection).
Step 2: Checking other options.
- (A) Acuity: Refers to sharpness of vision, not related to reflection.
- (C) Spectral hue: Refers to perceived color, not reflection coefficient.
- (D) Artifact: Refers to errors or distortions in data, not reflection.
Step 3: Conclusion.
Thus, the correct term for the fraction of incident electromagnetic energy reflected from a material is: \[ \boxed{\text{Albedo (Option B)}} \]
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