Physics A-Level
Absorber
What Absorber means in Physics A-Level, as defined for OCR.
Definition of Absorber
Check what you remember
Read the wording for your board, then hide it and explain Absorber in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: OCR
Material placed between source and detector, such as paper or thin card for alpha, aluminium sheets of varying thickness for beta, and lead sheets for gamma.
Topics that use Absorber
- Radioactivity (OCR A-Level)
Related terms
- Alpha decay
- Beta-minus decay
- Beta-plus decay
- Carbon-14 and half-life
- Corrected count rate
- Decay constant
- Experimental measurement of half-life
- Exponential decay
Using Absorber in the exam
Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.
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