It is desired to reduce the reflection at an air porcelain by use of 7 – McqOptions

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1.	It is desired to reduce the reflection at an air porcelain by use of 7/4 plate (for Porcelain Œº = 40, and Œµr = 7). The thickness of the polystyrene plate required at 10 GHz will be
A.	5.039 cm
B.	50.39 cm
C.	0.5039 cm
D.	0.05039 cm
Answer» D. 0.05039 cm

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