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47. A radioactive source consists of a mixture of two isotopes P and Q P has a half-life of 60 minutes and Q has a half- by a suitable counter is 800 min-!. After 120 min!.What was the initial contribution of P to life of 30 minutes. The initial activity recorded minutes the counter registers an activity of 80 the count rate? A. 160 min B. 240 min C. 270 min D.1480 min

47. A radioactive source consists of a mixture of two isotopes P and Q P has a half-life of 60 minutes and Q has a half- by a suitable counter is 800 min-!. After 120 min!.What was the initial contribution of P to life of 30 minutes. The initial activity recorded minutes the counter registers an activity of 80 the count rate? A. 160 min B. 240 min C. 270 min D.1480 min

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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47. A radioactive source consists of a mixture of two isotopes P and Q P has a half-life of 60 minutes and Q has a half- by a suitable counter is 800 min-!. After 120 min!.What was the initial contribution of P to life of 30 minutes. The initial activity recorded minutes the counter registers an activity of 80 the count rate? A. 160 min B. 240 min C. 270 min- D.1480 min-
Transcribed Image Text:47. A radioactive source consists of a mixture of two isotopes P and Q P has a half-life of 60 minutes and Q has a half- by a suitable counter is 800 min-!. After 120 min!.What was the initial contribution of P to life of 30 minutes. The initial activity recorded minutes the counter registers an activity of 80 the count rate? A. 160 min B. 240 min C. 270 min- D.1480 min-
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