Physics A-Level
Inverse-square law for point sources
What Inverse-square law for point sources means in Physics A-Level, as defined for AQA.
Definition of Inverse-square law for point sources
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Reference: AQA
The relationship tested by plotting corrected count rate against 1/d², where a straight line through the origin supports it.
Topics that use Inverse-square law for point sources
- Rutherford scattering (A-level only) (AQA A-Level)
Related terms
- Absorption and shielding
- Absorption experiment
- Absorption of radiation
- Atomic and nuclear structure
- Background radiation
- Background radiation and correction
- Choice of radiation source
- Corrected count rate
Using Inverse-square law for point sources in the exam
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