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electronics and communication engineering communication systems
1. In a Vidicon camera tube,
(A): both sides of the target plate have the coating of antimony tri-sulphide
(B): both sides of the target plate have the coating of tin oxide
(C): the side of target plate facing the light has a coating of antimony trisulphide while the side facing the electron gun has a coating of tin oxide
(D): the side of target plate facing the light has a coating of tin oxide and the side facing electron gun has a coating of antimony trisulphide
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