WJEC A Level Physics
WJEC A Level Physics 2.4-2.5 The Nature of Waves and Wave Properties Exam Questions
Free WJEC A Level Physics exam questions on 2.4-2.5 The Nature of Waves and Wave Properties, with mark schemes. Covers progressive waves, polarisation, diffraction, interference and stationary waves.
2.4-2.5 The Nature of Waves and 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.
About WJEC A Level Physics 2.4-2.5 The Nature of Waves and Wave Properties
This topic covers the nature of waves and superposition effects.
What you need to know
- Wave terms Amplitude, wavelength, frequency, period and phase.
- Wave equation v = fλ.
- Interference Path difference and coherence.
- Double slits and gratings λ = ay/D and dsin θ = nλ.
Common mistakes in 2.4-2.5 The Nature of Waves and Wave Properties
- Using slit width instead of slit separation.
- Saying stationary waves transfer energy.
- Wrong node spacing (half a wavelength).
Try three 2.4-2.5 The Nature of Waves and Wave Properties exam-style questions
1. A wave has f = 50 Hz and λ = 0.40 m. Find v. (1 mark)
Show the mark scheme answer
20 m s⁻¹.
2. 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).
3. State the condition for coherence. (1 mark)
Show the mark scheme answer
Constant phase difference and same frequency.
2.4-2.5 The Nature of Waves and 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.