Physics
Grade-10
Easy

Question

As the wavelength of the incident light increases, the deviation in its path on getting refracted through a prism ____.

  1. Increases
  2. Decreases
  3. Stays the same
  4. Becomes zero

hintHint:

angle of deviation decreases with increase in wavelength.

The correct answer is: Decreases


    Shorter wavelengths travel more slowly through the prism and hence are further deviated as compared to longer wavelengths. Hence, angle of deviation decreases with increase in wavelength.

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