Question

c) Write the cause of this phenomenon.
i. All the colours of light travel with the speed same as that of light in a material
medium.
ii. All the colours of light do not travel with the speed same as that of light in air.
iii. All the colours of light do not travel with the speed same as that of light in a
material medium.
iv. None of the above.
Correct answer will be marked brainliest

Answer 1

Answer:

please mark me brainalist please

Explanation:

The phenomenon of the splitting up of the white light into its constituent colours is called dispersion of light. Dispersion of light is caused because different constituent colours of light offer different refractive indexes to the material of the prism.

Answer 2

Answer:

Speed of light depends on the frequency of light. Since all colors have different frequencies, thus, all colours have different speeds.