Physics A-Level
Distance modulus and parsecs
What Distance modulus and parsecs means in Physics A-Level, as defined for AQA.
Definition of Distance modulus and parsecs
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Reference: AQA
The relationship m − M = 5 log₁₀(d/10) links apparent magnitude, absolute magnitude and distance in parsecs.
Topics that use Distance modulus and parsecs
- 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 Distance modulus and parsecs in the exam
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