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

question 51

Multiple Choice

Two stars,A and B,have the same emissivity,but the radii and surface temperatures are different with R_A = 2 R_B,and T_A = 0.5 T_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:

Larceny

The act of taking and carrying away the personal property of another without the right to do so.

Defrauding

The act of obtaining something of value through deceit or trickery.

Bribery

The act of offering, giving, receiving, or soliciting something of value to influence official action or the discharge of a public duty.

Premeditation

The act of planning or plotting in advance, especially with intent to commit a specific action or crime.