Physics A-Level
Magnitude difference
What Magnitude difference means in Physics A-Level, as defined for AQA.
Definition of Magnitude difference
Check what you remember
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Reference: AQA
A difference of 1 on the magnitude scale is equal to an intensity ratio of 2.51, because 2.51 is the fifth root of 100.
Topics that use Magnitude difference
- Classification by luminosity (A-level only) (AQA A-Level)
Related terms
- Apparent magnitude
- Apparent versus absolute magnitude
- Brightness
- Intensity of radiation received
- Irradiance
- Logarithmic brightness ratio
- Logarithmic brightness scale
- Logarithmic scale
Using Magnitude difference in the exam
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