Flare angle (in degrees) of horn antenna when axial length 10 and path difference = 0.3 is given is _____

Flare angle (in degrees) of horn antenna when axial length 10 and pat

1.	Flare angle (in degrees) of horn antenna when axial length 10 and path difference = 0.3 is given is _____
A.	= 1.386
B.	= 2.772
C.	= 27.72
D.	= 13.86
Answer» D. = 13.86