When a light wave enters into a medium of different optical density,
A. its speed and frequency change.
B. its speed and wavelength change.
C. its frequency and wavelength change.
D. its speed, frequency, and wavelength change.
Answer:B
When a light wave enters into a medium of different optical density,
A. its speed and frequency change. B. its speed and wavelength change. C. its frequency and wavelength change. D. its speed, frequency, and wavelength change.