Eduqas A Level Physics
Eduqas A Level Physics 3.2 Wave Properties Exam Questions
Free Eduqas A Level Physics exam questions on 3.2 Wave Properties, with mark schemes. Covers diffraction, interference, Young's double slits, diffraction gratings and stationary waves.
3.2 Wave Properties exam questions
1 question pack of real past exam questions with its mark scheme. Answer every question without notes, then mark your answers line by line against the mark scheme.
StemUp mark scheme flashcards
A Level Physics Flashcards
Every answer is written in mark scheme wording, so you learn exactly what examiners give marks for. Pick your exam board, then test yourself with the questions on this page.
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About Eduqas A Level Physics 3.2 Wave Properties
This topic covers superposition effects.
What you need to know
- Diffraction Spreading through gaps comparable to the wavelength.
- Interference Path difference and coherence.
- Double slits and gratings λ = ay/D and dsin θ = nλ.
- Stationary waves Nodes and antinodes; harmonics on strings and in pipes.
Common mistakes in 3.2 Wave Properties
- Using slit width instead of slit separation.
- Saying stationary waves transfer energy.
- Wrong node spacing (half a wavelength).
Try three 3.2 Wave Properties exam-style questions
1. A grating has 300 lines per mm. Find the first order angle for 600 nm light. (2 marks)
Show the mark scheme answer
d = 3.33 x 10⁻⁶ m (1); θ = sin⁻¹(0.18) = 10.4° (1).
2. State the condition for coherence. (1 mark)
Show the mark scheme answer
Constant phase difference and same frequency.
3. State the distance between adjacent nodes. (1 mark)
Show the mark scheme answer
Half a wavelength.
3.2 Wave Properties FAQs
What does Wave Properties cover?
Diffraction, interference, gratings and stationary waves.
Which practicals link here?
Measuring wavelength with a grating or double slits, and stationary waves on a string.
Why use a laser?
It is monochromatic and coherent.
Revise this topic with flashcards: A Level Physics Flashcards, with mark scheme answers for Anki and Quizlet.
