Question

Name the component of white light that deviates the least and the most while passing through a prism.

Answer 1

Answer:

Wavelength ...

Explanation:

Red Colour deviates least while violet deviates most.

Answer 2

Red deviates the least and violet the most.

Explanation:

When white light passes through a prism, it gets dispersed into the component colors of violet, indigo, blue, green, yellow, orange and red. The reason the component colors separate is because the different colours of light have different wavelengths, and the angle of deviation is different for different wavelength. So we see the rainbow on the other side of the prism. This is the same principle on which rainbows are formed from the sunlight.

Please refer to the attached picture for the diagram. You can see that red has the least angle of deviation and violent is at the other end of spectrum having maximum angle of deviation.