The Major Cause of Blurred and Unsharp Images of Objects

question 261

Multiple Choice

The major cause of blurred and unsharp images of objects observed through very large telescopes at the extreme limit of magnification is the

• A) poor tracking capabilities of modern telescopes.
• B) poor optical polish achievable on large mirrors.
• C) clumsiness of the telescope operator.
• D) air turbulence in Earth's atmosphere.

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Definitions:

Cost-Benefit Analysis

A systematic approach to estimating the strengths and weaknesses of alternatives used to determine options that provide the best approach to achieving benefits while preserving savings.

Human Life

The existence, characteristics, and experience of being a person; often considered with respect to the moral, social, and philosophical aspects.

Cost-Benefit Analysis

An economic evaluation method that compares the costs and benefits of a project or decision to determine its feasibility or compare alternatives.

Free-Rider Problem

A situation in economics where individuals consume more than their fair share of a public resource, or shoulder less of the cost of its provision, leading to underproduction or depletion of the resource.