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प्रश्न
When light travels from a rarer to a denser medium, the speed decreases. Does this decrease in speed imply a reduction in the energy carried by the wave?
उत्तर
The energy of the wave depends only on its frequency. Since the frequency does not change as the wave travels from one medium to another, therefore, the energy of the wave remains same and does not decrease.
संबंधित प्रश्न
When monochromatic light is incident on a surface separating two media, the reflected and refracted light both have the same frequency as the incident frequency.
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(i) Is the frequency of reflected and refracted light same as the frequency of incident light?
(ii) Does the decrease in speed imply a reduction in the energy carried by light wave?
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