In Cu T-200, the number denotes: (A) Surface area, (B) Weight in microgram, (C) Weight in miligram, (D) Effective half life in week
Answer is A. In Cu T 200, the number included in the name of the device refer to the surface area in sq.mm of the copper on the device Reference : Park&;s textbook of preventive and social medicine,23rd edition, Page no: 496