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  1. Power gain of antenna equals directive gain in VHF and UHF range if and only if efficiency of the antenna is __________ .

    2. A.
    0.25
    B.
    0.5
    C.
    0.75
    D.
    1

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    Answer : Option D

    Explanation :

    Directive gain and power gain are identical except that power gain takes into account the antenna losses. It may be written as

    Gp = ηGd η => efficiency

    If η = 1 , GP = Gd .

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