Question

When light enters from air into a medium, its speed changes. Which of the following properties of light remains constant during this transition?

• A. Wavelength
• B. Frequency
• C. Speed
• D. Amplitude

Answer 1

Answer:

B. Frequency

• When light travels from one medium to another (e.g., from air to water or glass), its speed and wavelength change. However, one fundamental property remains invariant: its frequency.