1450. A sphere of radius ‘R₁’ is enclosed in a sphere of radius ‘R₂’. The view (or shape) factor for radiative heat transfer of the outer sphere with respect to the inner sphere is September 7, 2025 by Admin 0 R₂/(R₁+R₂) 1 (R₁/R₂)2 ✅ The correct answer is option B.
