A-LevelPhysicsWaves9702/12 · Oct/Nov 2025 · Q281 Mark
A light wave passes through a single slit and a diffraction pattern forms. What happens to the frequency and the speed of the wave when it is diffracted?
Adecreases, increases
Bincreases, decreases
Cno change, decreases
Dno change, no change
✓ Correct answer
D: no change, no change
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