Two spheres, A & B, are made up of the same material. The radius of A – McqOptions

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1.	Two spheres, A & B, are made up of the same material. The radius of A is twice that of B, while the temperature of A is half that of B. What is their ratio of energy emitted per unit time (E_A : E_B)?
A.	1
B.	1/4
C.	1/2
D.	1/16
Answer» C. 1/2

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