Physics
Inside the prism, during the dispersion of white light, compared to blue, red light
- slows down less and refracts more
- slows down more and refracts less
- slows down more and refracts more
- slows down less and refracts less
Answer
slows down less and refracts less
Reason — In a prism, the refractive index of a given transparent medium decreases with the increase in the wavelength of light. Thus, for visible light the refractive index of the material of a prism is greater for blue colour and minimum for red colour i.e., speed of red colour is greater than speed of blue colour. Consequently, a given prism deviates blue light more as compared to red light.
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