Exam-style question
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In a diffraction experiment, if both the wavelength and the gap size are increased, what is the overall effect 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
Increasing both the wavelength and the gap size leads to greater diffraction, resulting in a wider diffraction pattern as both factors contribute to the spreading of the waves.
Common mistake
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