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Unformatted text preview: This compares to the known value of 156 seconds. Discussion: In the first part of the lab, a value of -2.1178 ± 0.0723 was found for n. The value of A was 19.81 ± 0.83. The uncertainty in these measurements stems from variance in background radiation and also from distance placement from the Geiger tube. Also, with only five different values obtained, it is tough to get a totally accurate reading. More measurements would have to be taken. In the second part of the lab, an acceptable half life of 161 seconds was found. A background radiation level of 35 counts was used. The value obtained was close to the value expected....
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This note was uploaded on 11/27/2011 for the course PHYS 105 taught by Professor Walker during the Fall '08 term at UNC.
- Fall '08