Select the correct answer.

Which property of light remains unchanged when it enters a different medium?

A. amplitude
B. frequency
C. wavelength
D. velocity
E. density



Answer :

Final answer:

Frequency remains constant when light enters a different medium.


Explanation:

Frequency remains unchanged when light enters a different medium. For example, when light moves from air into water, its wavelength and velocity change, but the frequency remains constant.


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