O-LevelPhysicsLight5054/11 · May/June 2020 · Q291 Mark

What is a feature of red light compared with that of violet light?

Aprism deviates red light more.

BRed light has a lower frequency.

CRed light has a shorter wavelength.

DThe speed of red light in a vacuum is smaller.

✓ Correct answer

B: Red light has a lower frequency.

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