Two Stars,A and B,have the Same Emissivity,but the Radii and Surface

question 53

Multiple Choice

Two stars,A and B,have the same emissivity,but the radii and surface temperatures are different with R_A = 0.5R_B,and T_A = 2T_B.Assuming the temperature of space to be negligible,which star radiates the most energy per unit time?

• A)Star A
• B)Star B
• C)Both radiate the same amount of energy per unit time.
• D)More information is needed in order to make a determination.

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Definitions:

Hyphema

The presence of blood in the anterior chamber of the eye, usually resulting from trauma.

Hypopyon

The accumulation of pus or inflammatory cells in the anterior chamber of the eye, often seen in severe eye infections or inflammation.

Pterygium

A benign growth of the conjunctiva that extends over the cornea, often associated with prolonged exposure to sunlight.

Optic Disc

The point in the eye where the optic nerve meets the retina, appearing as a small, circular area.