Q. A sphere of radius 'R1' is enclosed in a sphere of radius 'R2'. The view (or shape) factor forradiative heat transfer of the outer sphere with respect to the inner sphere is (Solved)
1. 0
2. R2/(R1+R2)
3. 1
4. (R1/R2) 2
- b. R2/(R1+R2)
1. 0
2. R2/(R1+R2)
3. 1
4. (R1/R2) 2