O-LevelPhysicsLight5054/12 · Oct/Nov 2020 · Q241 Mark
Which statement about light passing from air to glass is correct?
AThe frequency of the light waves decreases.
BThe speed of the light waves decreases.
CThe wavelength of the light waves increases.
DThe wavelength of the light waves remains unchanged.
✓ Correct answer
B: The speed of the light waves decreases.
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