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Half-power Beamwidth is given by ____

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Half-power Beamwidth is given by ____

(a) 70λ/D

(b) 70D/λ

(c) 35λ/D

(d) 35D/λ
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The correct choice is (a) 70λ/D

Explanation: The area the power is radiated is given by Beamwidth. Half power Beamwidth is the area at which the power is radiated 50% of peak power. The half-power beamwidth is given by70λ/D.
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