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A radioactive sample has an activity R. For each of the following changes, indicate whether the activity would increase, decrease, or remain unchanged. HINT Relate the sample's activity R to each of the quantities being changed. Click the hint button again to remove this hint. (a) The number of radioactive nuclei in the sample is doubled. O The activity would increase. O The activity would decrease. O The activity would remain unchanged. (b) The half-life of the radioactive nuclei is doubled. O The activity would increase. O The activity would decrease. O The activity would remain unchanged. (c) The decay constant is doubled. O The activity would increase. O The activity would decrease. O The activity would remain unchanged. (d) A time period equal to two half-lives is allowed to elapse. O The activity would increase. O The activity would decrease. O The activity would remain unchanged.

A radioactive sample has an activity R. For each of the following changes, indicate whether the activity would increase, decrease, or remain unchanged. HINT Relate the sample's activity R to each of the quantities being changed. Click the hint button again to remove this hint. (a) The number of radioactive nuclei in the sample is doubled. O The activity would increase. O The activity would decrease. O The activity would remain unchanged. (b) The half-life of the radioactive nuclei is doubled. O The activity would increase. O The activity would decrease. O The activity would remain unchanged. (c) The decay constant is doubled. O The activity would increase. O The activity would decrease. O The activity would remain unchanged. (d) A time period equal to two half-lives is allowed to elapse. O The activity would increase. O The activity would decrease. O The activity would remain unchanged.

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A radioactive sample has an activity R. For each of the following changes, indicate whether the activity would increase, decrease, or remain unchanged. HINT Relate the sample's activity R to each of the quantities being changed. Click the hint button again to remove this hint. (a) The number of radioactive nuclei in the sample is doubled. O The activity would increase. O The activity would decrease. O The activity would remain unchanged. (b) The half-life of the radioactive nuclei is doubled. O The activity would increase. O The activity would decrease. O The activity would remain unchanged. (c) The decay constant is doubled. O The activity would increase. O The activity would decrease. O The activity would remain unchanged. (d) A time period equal to two half-lives is allowed to elapse. O The activity would increase. O The activity would decrease. O The activity would remain unchanged.
Transcribed Image Text:A radioactive sample has an activity R. For each of the following changes, indicate whether the activity would increase, decrease, or remain unchanged. HINT Relate the sample's activity R to each of the quantities being changed. Click the hint button again to remove this hint. (a) The number of radioactive nuclei in the sample is doubled. O The activity would increase. O The activity would decrease. O The activity would remain unchanged. (b) The half-life of the radioactive nuclei is doubled. O The activity would increase. O The activity would decrease. O The activity would remain unchanged. (c) The decay constant is doubled. O The activity would increase. O The activity would decrease. O The activity would remain unchanged. (d) A time period equal to two half-lives is allowed to elapse. O The activity would increase. O The activity would decrease. O The activity would remain unchanged.
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