Physics A-Level
Radian
What Radian means in Physics A-Level, as defined for AQA, OCR.
Definitions of Radian
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Reference: OCR
The SI unit of angle, defined so that one radian is the angle subtended at the centre of a circle by an arc equal in length to the radius.
The angle subtended at the centre of a circle by an arc equal in length to the radius.
Topics that use Radian
- Advantages of large diameter telescopes (A-level only) (AQA A-Level)
- Kinematics of circular motion (OCR A-Level)
Related terms
- Angular velocity
- Astronomical calculations
- Collecting power
- Frequency
- Period
- Quantum efficiency
- Rayleigh criterion
- Reciprocals
Using Radian in the exam
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