Question

White light travelling in air is refracted by water
(a) It is possible that dispersion does not take place.
(b) Dispersion necessarily takes place
(c) Red colour has highest speed in water
(d) If light is dispersed than violet colour undergoes maximum deviation​

Answer 1

Answer:

So option (a) It is possible that dispersion does not take place is your answer !!

Explanation:

Hi !!

Hope it helps you !!

Answer 2

Answer:

If the light is dispersed, the violet colour undergoes maximum deviation​.

Explanation:

The last option is the correct answer because:

• The refractive index of water is greater than that of the refractive index of air.
• White light is made up of seven different wavelengths.
• The dispersion extent of dispersion of these wavelengths differs due to the difference in how they interact with a medium's atoms.
• Wavelength is inversely proportional to the extent of dispersion.
• In white light, violet has the smallest wavelength.
• Therefore, If the light is dispersed, the violet colour undergoes maximum deviation​.