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The radiated beam from a parabolic “dish” transmitting antenna is ________

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The radiated beam from a parabolic “dish” transmitting antenna is ________

(a) dispersed

(b) refracted

(c) collimated

(d) scattered

This question was addressed to me during an interview.

Origin of the question is Asynchronous TDM in division Multiplexing & Sampling of Bandpass Signal of Analog Communications

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Correct option is (c) collimated

The explanation: The radiated beam from a parabolic “dish” transmitting antenna is collimated. Collimated light is that light whose rays are parallel due to which it disperse minimally as it propagates.

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