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Radioactivity (A-level only)

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Question 12

A space probe is powered by a Radioisotope Thermoelectric Generator (RTG). The thermal power output of the RTG is directly proportional to the activity of its Plutonium-238 source.

At launch, the thermal power output of the RTG is 800 W800\text{ W}800 W.

After 10 years10\text{ years}10 years in space, the thermal power output has decreased to 720 W720\text{ W}720 W.

What will the thermal power output of the RTG be 30 years30\text{ years}30 years after launch?

A

560 W560\text{ W}560 W

B

583 W583\text{ W}583 W

C

640 W640\text{ W}640 W

D

729 W729\text{ W}729 W

Markscheme

Radioactivity (A-level only) Questions

  1. A Level
  2. /Physics
  3. /Radioactivity (A-level only)

128 exam-style questions on AQA A Level Physics Radioactivity (A-level only), covering Rutherford scattering (A-level only), $\alpha$ , $\beta$ and $\gamma$ radiation (A-level only), Radioactive decay (A-level only), Nuclear instability (A-level only), Nuclear radius (A-level only), Mass and energy (A-level only), Induced fission (A-level only), and Safety aspects (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.

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