Question

The value of the geometric factor for two inclined flat plates having common edge of equal width, and with an angle of 60 degrees?

• A. 0.707
• B. 0.866
• C. 0.66
• D. 0.5

Answer 1

The correct option is D 0.5


Both plates have equal width and equal length (Area will be same)

$F_{1-2}=F_{2-1}=1-sin\left(\frac{\alpha }{2}\right)$

$=1-sin\left(\frac{60}{2}\right)=1-sin30=1-0.5=0.5$