Exam-style question
Try this first
If the gap size is decreased while keeping the wavelength constant, what effect does this have on the diffraction pattern?.
- 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
Decreasing the gap size increases the diffraction effect, causing the waves to spread out more and resulting in a wider diffraction pattern.
Common mistake
No common mistake is linked to this question yet.