Two Pairs of Associated Sunspots Appear on the Visible Disk

question 28

Multiple Choice

Two pairs of associated sunspots appear on the visible disk of the photosphere of the Sun, one pair in each hemisphere. If the magnetic polarity of the westernmost spot in the northern hemisphere is found to be N, what will be the magnetic polarities of the other three spots?

• A) The magnetic polarity of all the spots at this time will be N because polarity of sunspots changes only every 11 years.
• B) The magnetic polarity of the other northern spot will be N, while in the two spots in the southern hemisphere it will be S.
• C) The magnetic polarity of the other northern spot will be S, and the southern hemisphere spots will match this alignment; the westward spot will be N, while the eastward spot will be S.
• D) The magnetic polarity of the other northern spot will be S, while in the southern hemisphere the westward spot will be S and the eastward spot will be N.

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Definitions:

Feature Detection

A process by which the nervous system detects specific elements of visuals, such as lines, edges, or movements, in order to recognize objects.

Bottom-Up Processing

An approach to information processing that starts with the sensory input and builds up to the perception of the whole from individual parts.

Interposition

A visual cue in depth perception where objects that block the view of other objects are perceived as being closer.

Environmental Depth Cue

Visual or other sensory cues in one's environment that provide information about distance and three-dimensional space.