An Astronomer Wants to Observe a Cloud of Cold Neutral

question 30

Multiple Choice

An astronomer wants to observe a cloud of cold neutral (not ionized) hydrogen, far away from any stars. What would be an instrument that could help in this task?

• A) a telescope in space, able to pick up x-rays from space
• B) a radio telescope, tuned to a wavelength of about 21 centimeters
• C) a large telescope observing visible light, but with a very sensitive CCD detector attached
• D) a neutrino detector, deep underground
• E) you can't fool me; there is no way to observe clouds of hydrogen that are not near a star

Recognize the importance of emotional intelligence in managing personal conflicts and negotiations.

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Definitions:

Theoretical Diversity

The presence of multiple theories or viewpoints within a field of study, highlighting the complexity and multifaceted nature of the subject matter.

Sensory Adaptation

The process by which sensory receptors become less sensitive to constant or unchanging stimuli over time.

Absolute Thresholds

The minimum intensity of a stimulus that one can perceive at least 50% of the time.

Colour Hue

The quality of a color determined by its dominant wavelength, making it distinguishable as red, green, blue, etc.