Light travels from rarer to denser medium what hapens wavelength and frequency
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We know, frequency f= C/λ, where c= speed of light and λ is its wavelength.
With change in medium, speed of light also changes. But frequency remains constant. different frequency represents different colors and it does not changes with change in medium. But wavelength of light changes along with the speed with which it travels. As light travels through denser medium, light wave travels a shorter wavelength but at constant frequency.
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