Intensity reflection coefficient
What Intensity reflection coefficient means in Physics A-Level, as defined for AQA, OCR.
Definitions of Intensity reflection coefficient
Exam boards and our study guides word this term in slightly different ways. Learn the version your board uses.
Check what you remember
Read the wording for your board, then hide it and explain Intensity reflection coefficient in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: OCR
The fraction of incident intensity reflected at a boundary, given by Iᵣ/I₀ = (Z₂ − Z₁)²/(Z₂ + Z₁)², where I₀ is the incident intensity and Iᵣ is the reflected intensity.
The fraction of incident intensity reflected, given by (Z₂ − Z₁)²/(Z₂ + Z₁)².
Topics that use Intensity reflection coefficient
- Ultrasound imaging (A-level only) (AQA A-Level)
- Using ultrasound (OCR A-Level)
Related terms
- A-scan
- Acoustic impedance
- B-scan
- Coupling gel
- Piezoelectric effect
- Acoustic impedance and reflection
- Acoustic impedance mismatch
- Acoustic matching
Using Intensity reflection coefficient in the exam
Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.
Practise Physics questions
Create a free account to answer exam-style questions on this topic and get feedback on your answers.
A week of Premium from your first lesson · Then the free plan continues · No card, no charge