The GMRT array consists of how many parabolic dishes, and of what diameter each?
- A.Thirty dishes of 45 metres each
- B.Fifteen dishes of 30 metres each
- C.Forty-five dishes of 30 metres each
- D.Twelve dishes of 50 metres each
Show answer
Fourteen of them stand close together in a central square of about one kilometre, and the remaining sixteen are spread along three arms in a Y shape stretching some twenty-five kilometres, which gives the array both the sensitivity of a filled aperture and the resolution of a wide one.
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