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A glass prism splits white light into different colours. This phenomenon is called dispersion of light by prism. Which one of the following statements is correct?

Options

  1. ARed light will deviate the most and it is because of the reflection of light.
  2. BViolet light will deviate the most and it is because of the refraction of light.
  3. CRed light will deviate the most and it is because of the refraction of light.
  4. DViolet light will deviate the most and it is because of the reflection of light.

Correct answer

B. Violet light will deviate the most and it is because of the refraction of light.

Step-by-step solution

Rayleigh scattering law. It simply states that : 1. U(Refractive index) is inversely proportional to square of the wavelength of light. 2. deviation is directly related to refractive index. 3. Speed of light depends on the medium. Densser the medium lesser the speed and raser the medium greater the speed of light and is maximum 3 10^ m / s in air/ vacuum. More the index more will be the deviation - Violet colour deviate most and red deviate the less because the wavelength of a red light is almost double the wavelen

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