What is the definition of solid angle in terms of area and radius? - PHYSICS AND MEASUREMENT Quiz | GKFix.in

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Question

What is the definition of solid angle in terms of area and radius?

A. dΩ = dA / r
B. dΩ = dA × r²
C. dΩ = r² / dA
D. dΩ = dA / r²

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