Solid angle subtended by the finite surface at the radiating element i

1.	Solid angle subtended by the finite surface at the radiating element is
A.	called the view factor.
B.	called the angle of vision.
C.	proportional to the square of the distance between surfaces.
D.	expressed in terms of radians.
Answer» C. proportional to the square of the distance between surfaces.

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Solid angle subtended by the finite surface at the radiating element is

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