Discussion Forum
Que.  Shape factor for sphere is 
a.  4 π r₁ r₂ 
b.  4 π r₁ r₂/r₂ – r₁ 
c.  4 π /r₂ – r₁ 
d.  r₁ r₂/r₂ – r₁ 
Correct Answer:4 π r₁ r₂/r₂ – r₁

Que.  Shape factor for sphere is 
a.  4 π r₁ r₂ 
b.  4 π r₁ r₂/r₂ – r₁ 
c.  4 π /r₂ – r₁ 
d.  r₁ r₂/r₂ – r₁ 
Correct Answer:4 π r₁ r₂/r₂ – r₁
