Physics A-Level
Order
What Order means in Physics A-Level, as defined for AQA, OCR.
Definitions of Order
Exam boards and our study guides word this term in slightly different ways. Learn the version your board uses.
Check what you remember
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Reference: AQA
The number n of a sharp maximum produced by a diffraction grating, with angles θ given by d sin θ = nλ.
The value n in d sin θ = nλ, used with a measured angle θ to determine the wavelength.
Topics that use Order
- Interference (AQA A-Level)
- Electromagnetic radiation from stars (OCR A-Level)
Related terms
- Grating spacing
- Black-body modelling of stars
- Coherence
- Coherent monochromatic sources
- Coherent sources
- Constructive interference
- Constructive superposition
- Continuous spectrum
Using Order in the exam
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