Many Images of the Chromosphere Are Taken Through a Red

question 33

Multiple Choice

Many images of the chromosphere are taken through a red filter.One reason for this is to:

• A) block out all red light and allow through the prominent light of other colors produced in the chromosphere.
• B) allow through the filter the red light produced by the photosphere and thus show an effective contrast with the chromosphere.
• C) ensure that the blue of Earth's atmosphere does not interfere with the image.
• D) allow through the red light which is produced predominantly in the chromosphere and not in the photosphere.

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Definitions:

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