As the Moon Covers the Solar Disk During a Solar

question 90

Multiple Choice

As the moon covers the solar disk during a solar eclipse, a flash spectrum of the sun s chromosphere can be recorded. This flash spectrum reveals an emission spectrum and provides information on the properties of the chromosphere. As the moon moves from the inner chromosphere to the outer chromosphere, the spectral lines present in the flash spectrum change. What is going on in the chromosphere that produces the changes in the flash spectrum?
I. The temperature of the chromosphere decreases as the distance from the photosphere increases.
II. The temperature of the chromosphere increases as the distance from the photosphere increases.
III. The density of the chromosphere decreases as the distance from the photosphere increases.
IV. The density of the chromosphere increases as the distance from the photosphere increases.

• A) I,III
• B) I, IV
• C) II III
• D) II IV
• E) I

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Definitions:

Feedforward

A communication process that involves providing future-focused feedback or information to preempt or guide actions.

Feedback Control System

A system that regulates its own operation by monitoring its output and making necessary adjustments to maintain a desired state or performance.

Work Outputs

The tangible results or products generated from the work process, which can be measured in terms of quantity, quality, or efficiency.

Feedforward Control

A management technique that involves monitoring inputs and providing proactive guidance to ensure desired outputs are achieved.