Star a Is a Main Sequence Star of Spectral Type

question 73

Multiple Choice

Star A is a main sequence star of spectral type G5 and star B is a red giant of spectral typeK2. Which statement below is correct?

• A)Star A appears brighter than star B.
• B)Star B appears brighter than star A.
• C)Star A is hotter than star B.
• D)Star B is hotter than star A.
• E)None of the above can be said about these two stars.

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Definitions:

Transcranial Direct Current Stimulation (tDCS)

A form of neurostimulation that uses constant, low current delivered directly to the brain area via electrodes on the scalp to modulate neuronal activity.

Electric Current

The flow of electric charge through a conductor, typically measured in amperes.

Brain's Cortex

The outer layer of the cerebrum, involved in high-level brain functions such as thought, language, memory, and consciousness.

Endorphins

Natural chemicals in the body that interact with brain receptors to reduce pain and stimulate feelings of pleasure or euphoria.