# Problem: When light travels from air to water,A) its velocity, wavelength and frequency all change.B) its velocity and wavelength change, but its frequency does not change.C) its velocity changes, but its frequency and wavelength do not change.D) its wavelength changes, but its velocity and frequency do not change.E) It's frequency changes, but its velocity and wavelength do not change.

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###### Problem Details

When light travels from air to water,

A) its velocity, wavelength and frequency all change.

B) its velocity and wavelength change, but its frequency does not change.

C) its velocity changes, but its frequency and wavelength do not change.

D) its wavelength changes, but its velocity and frequency do not change.

E) It's frequency changes, but its velocity and wavelength do not change.