Which colour is bent the least during dispersion?

Study for the Key Stage 3 (KS3) Physics Test. Engage with flashcards and multiple choice questions, each offering hints and explanations. Prepare to ace your exam!

During the phenomenon of dispersion, different colors of light are bent by varying amounts as they pass through a medium, such as a prism. This bending occurs due to refraction, which is dependent on the wavelength of the light.

Red light has the longest wavelength among the visible spectrum colors, while violet light has the shortest wavelength. When white light enters a prism, the shorter wavelengths (like violet) are refracted more than the longer wavelengths (like red). Therefore, red light, being at the spectrum's end with the longest wavelength, is bent the least during this process.

This understanding is crucial in explaining why red is the color that experiences the least amount of bending during dispersion. On the other hand, colors such as violet would be bent the most due to their shorter wavelengths.

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