Multiple choice

When light wave travel's from air to glass, which variables are affected?

  1. wavelength , frequency and velocity

  2. velocity and frequency only

  3. wavelength and frequency only

  4. wavelength and velocity only
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

When light travels from air to glass, its velocity decreases and its wavelength decreases. However, the frequency of the light wave remains constant because it is determined by the source.

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