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Physics lab # 13

# Physics lab # 13 - 10-5=5 5 53 53-5=48 17 13 13-5=8 6 35...

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Interval Number Number of counts Deviation from mean Table I. Internal Pulses Mean Number Average Deviation: 16 Of counts In 10 seconds: 603 Table II. Background Radiation Interval Number Number of counts Deviation from mean 1 634 31 2 551 52 3 595 8 4 610 7 5 602 1 6 587 16 7 609 6 8 604 1 9 597 6 10 637 34 Interval Number Number of counts Deviation from mean 1 7 2 2 5 0 3 4 1 4 6 1 5 7 2 6 8 3 7 6 1

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8 3 2 9 3 2 10 2 3 Mean Number Average Deviation: 2 Of counts In 10 seconds: 5 Table III Induced Radioactivity n Interval Number Number of counts C Counts minus Background n Interval Number Number of counts C Counts minus Background 1 38 38-5=33 13 13 13-5=8 2 31 31-5=26 14 13 13-5=8 3 23 23-5=18 15 14 14-5=9 4 29 29-5=24 16 10
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Unformatted text preview: 10-5=5 5 53 53-5=48 17 13 13-5=8 6 35 35-5=30 18 10 10-5=5 7 27 27-5=22 19 8 8-5=3 8 15 15-5=10 20 11 11-5=6 9 22 22-5=17 21 17 17-5=12 10 22 22-5=17 22 13 13-5=8 11 22 22-5=17 23 10 10-5=5 12 14 14-5=9 24 6 6-5=1 Table IV Calculation of Half-Life C¹ n¹ C²=(C¹/2) n² Δn = n² - n¹ 60 1.5 30 6 4.5 50 2.5 25 8 5.5 40 4 20 10 6 30 6 15 13 7 Half Life (In intervals): MEANΔ n 5.75 Calculated Half Life = Δn x 20: 115 sec Percent Error: 134 - Calculated half life / 134 X 100% = 134-115/115 X 100% = 14.17...
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Physics lab # 13 - 10-5=5 5 53 53-5=48 17 13 13-5=8 6 35...

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