Question:
Which colour of light has minimum deviation after passing white light through a prism?
Which colour of light has minimum deviation after passing white light through a prism?
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In dispersion, violet deviates maximum, red deviates minimum.
Updated On: Oct 8, 2025
- Violet
- Yellow
- Green
- Red
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The Correct Option is D
Solution and Explanation
Step 1: Refraction through prism.
The deviation depends on refractive index, which varies with wavelength.
Step 2: Dispersion of light.
Red has the longest wavelength, so it bends the least. Violet has the shortest wavelength, so it bends the most.
Step 3: Conclusion.
Thus, red colour has minimum deviation.
The deviation depends on refractive index, which varies with wavelength.
Step 2: Dispersion of light.
Red has the longest wavelength, so it bends the least. Violet has the shortest wavelength, so it bends the most.
Step 3: Conclusion.
Thus, red colour has minimum deviation.
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