When light passes from a rarer to a denser medium, its wavelength decreases but the frequency remains unchanged.
Class 12 Physics
Chapter 9 Ray Optics and Optical Instruments Session 2024-2025.
Do the frequency and wavelength change when light passes from a rarer to a denser medium?
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When light passes from a rarer to a denser medium, its wavelength decreases, but the frequency remains unchanged. The speed reduction in the denser medium causes a shorter wavelength while maintaining the same frequency.
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