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Question
Complete the sentence with a suitable option:
The authors' study indicates that, in comparison with the outermost regions of a typical spiral galaxy, the region just outside the nucleus can be characterized as having ____________.
Complete the sentence with a suitable option:
The authors' study indicates that, in comparison with the outermost regions of a typical spiral galaxy, the region just outside the nucleus can be characterized as having ____________.
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Solution
The correct option is E Similar rotational velocity and higher luminosity
The second sentence of the second para says that luminosity falls off rapidly outside the bright nucleus as the distance increases from the center. This means that the region just outside the nucleus will have higher luminosity as it's not far from the nucleus. As per the fifth sentence of the second para, rotational velocity either remains constant or increases slightly with increasing distance. This implies that there will be similar rotational velocity in the region just outside the nucleus as the increase won't be significant. Hence, D is our correct answer.Other options indicate incorrect statements.
The second sentence of the second para says that luminosity falls off rapidly outside the bright nucleus as the distance increases from the center. This means that the region just outside the nucleus will have higher luminosity as it's not far from the nucleus. As per the fifth sentence of the second para, rotational velocity either remains constant or increases slightly with increasing distance. This implies that there will be similar rotational velocity in the region just outside the nucleus as the increase won't be significant. Hence, D is our correct answer.
Other options indicate incorrect statements.
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