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Which of these devices is used to observe objects by having two or more antennas with high aperture?

Which of these devices is used to observe objects by having two or more antennas with high aperture? Correct Answer Radio interferometer

Radio interferometers are sensors which accurately measure the directional information of a satellite using radio interferometry. It makes use of 2 or more antennas of high aperture and waves interferes on the same receiver. This is similar to the double- slit experiment phenomenon.

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