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CAIE A-Level Physics AS 8.2.2 Experiments That Demonstrate Diffraction Including the Qualitative Effect of Questions

Describe experiments demonstrating diffraction and explain qualitatively how diffraction varies with wavelength and aperture size.

Syllabus
2028–2030
Course
Physics 9702
Level
AS

Exam points

  • Describe experiments demonstrating diffraction and explain qualitatively how diffraction varies with wavelength and aperture size.

CAIE A-Level Physics AS 8.2.2 Experiments That Demonstrate Diffraction Including the Qualitative Effect of Questions question 1

[Maximum number: 1]

A water wave passes through a gap in a harbour wall and diffracts. The gap has a width of 8 m .

Figure for Question CAIE A-Level Physics AS 8.2.2 Experiments That Demonstrate Diffraction Including the Qualitative Effect of Questions question 1 — CAIE A-Level Physics AS

The wave travels directly towards the gap.
For which wavelength is the diffraction of the wave greatest?

A

1 m

B

2 m

C

4 m

D

8 m

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