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If the antennas revolution time is 10 sec and 3 dB beam width duration is 150ms then the antenna beam width is _______

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If the antennas revolution time is 10 sec and 3 dB beam width duration is 150ms then the antenna beam width is _______

(a) 5.4°

(b) 54°

(c) 15°

(d) 1.5°
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The correct answer is (a) 5.4°

Explanation: Antenna beam width = \(\frac{Beam ,duration}{rotating ,period}×360° = \frac{150m}{10} ×360°=5.4°\)
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