Two Spheres,both at the Same Temperature,have Radii R and 2R

question 262

Multiple Choice

Two spheres,both at the same temperature,have radii R and 2R.How do the energies radiated per unit area compare for these spheres?

• A) They are the same.
• B) The larger sphere has twice the value of the smaller sphere.
• C) The larger sphere has 4 times the value of the smaller sphere.
• D) The larger sphere has 16 times the value of the smaller sphere.

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