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CUSAT 2021 BTech Solved Paper Shift 1

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Question : 6

Total: 250

The half-life of ‌215‌At is 100µ s. The time taken for the radioactivity decay of a sample of ‌215‌At to 1∕16‌th ‌ of its initial value is

400µ s
6.3µ s
40µ s
300µ s

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