Exam-style question
Try this first
What happens to the diffraction pattern when the wavelength of a wave increases while passing through a fixed aperture?.
- A.The pattern becomes narrower.
- B.The pattern becomes wider.
- C.The pattern remains unchanged.
- D.The pattern disappears.
Model answer
What a good answer should say
- The pattern becomes wider.
Explanation
Why this works
As the wavelength increases, the amount of diffraction increases, resulting in a wider diffraction pattern. This is because longer wavelengths bend more around obstacles.
Common mistake
No common mistake is linked to this question yet.