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agasfer [191]
3 years ago
5

A radioactive isotope has a life for 15 minutes. It has an initial count rate of 36000 Bg. What will the count be after 1 hour?

Physics
1 answer:
lukranit [14]3 years ago
3 0

Answer:

18000 Bg

Explanation:

after 15 minutes = 36000/2

After 30 minutes = 36000/4

30 minutes × 2 = 1 hour

After 1 hour = 36000/4 × 2 = 18000 Bg

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Rounding to the next integrer: 3.

Three photons are the minimum to equal or exceed the band gap.

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