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A-LevelPhysicsWaves9702/12 · Oct/Nov 2024 · Q291 Mark

An electromagnetic wave is diffracted as it passes through a single slit. The width of the slit is larger than the wavelength of the wave. Which change will decrease the amount of diffraction of the wave?

ADecrease the frequency of the wave.

BDecrease the time period of the wave.

CDecrease the width of the slit.

DIncrease the wavelength of the wave.

✓ Correct answer

B: Decrease the time period of the wave.

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About this question

Topic: Waves, A-Level Physics (syllabus 9702). Multiple choice, 1 mark.
Source: A-Level Physics, Oct/Nov 2024 Paper 1 Variant 2, question 29.

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