Quick questions on Radioactive decay and half-life - OCR Gateway GCSE Physics A (P6)

2short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.

What is q1?

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A source has a count rate of

2000

counts per minute and a half-life of

2\,\text{hours}

. State the count rate after

6\,\text{hours}

. [2 marks]

What is q2?

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State the unit of activity and what one unit means. [1 mark]

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