Define Aperture Efficiency?

1.	Define Aperture Efficiency?
Answer» The RATIO of the effective APERTURE to the physical aperture is the aperture EFFICIENCY. i.e Aperture efficiency = hap = Ae / Ap (DIMENSIONLESS). The ratio of the effective aperture to the physical aperture is the aperture efficiency. i.e Aperture efficiency = hap = Ae / Ap (dimensionless).

Answer»

The RATIO of the effective APERTURE to the physical aperture is the aperture EFFICIENCY. i.e Aperture efficiency = hap = Ae / Ap (DIMENSIONLESS).

The ratio of the effective aperture to the physical aperture is the aperture efficiency. i.e Aperture efficiency = hap = Ae / Ap (dimensionless).

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