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5 Cards in this Set
- Front
- Back
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Name the three types of radiation that are emitted from a radioactive atom.
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Alpha, beta and gamma
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A person can see objects far away but has difficulty with close up objects. What is the person`s eye defect?
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Longsight
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The unit that describes the power of a lens is
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Dioptre
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The activity of a radioactive source is measured in
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Bequerals
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A radioactive source has a half life of 3 hours.
Over a time of 9 hours the activity has fallen by |
1/8 th
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