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Communication Systems

Q1: In a Vidicon camera tube,

A both sides of the target plate have the coating of tin oxide

B both sides of the target plate have the coating of antimony tri-sulphide

C 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

D 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

ANS:C - 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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