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6.2 Uses and hazards

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Question 17
F

A doctor needs a radioactive tracer to check how well a patient's kidneys are working. The test takes about one hour.

The table shows information about four isotopes.

Table

IsotopeRadiation emittedHalf-life
Palpha6 hours6\ \text{hours}6 hours
Qgamma30 years30\ \text{years}30 years
Rbeta5 seconds5\ \text{seconds}5 seconds
Sgamma6 hours6\ \text{hours}6 hours

Which isotope is the most suitable tracer?

[1]
A

Isotope P

B

Isotope Q

C

Isotope R

D

Isotope S

Markscheme

6.2 Uses and hazards Questions

  1. GCSE
  2. /Physics
  3. /6.2 Uses and hazards

48 exam-style questions on OCR GCSE Physics 6.2 Uses and hazards, covering 6.2.1 Contamination and irradiation, 6.2.2 Half-life and radiation hazards, 6.2.3 Medical uses of nuclear radiation, 6.2.4 Nuclear fission and chain reactions, and 6.2.5 Nuclear fusion. Each one has a worked solution and a mark scheme showing where the marks go.

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