Dispersion Of White Light By A Glass Prism

During noon, the sun is almost overhead and sunlight has to travel a shorter distance through the atmosphere.
As a result, there is very little scattering of light, and most of the colours (including blue and red) reach our eyes without significant deviation.
This is why the sun appears white or bright rather than red during noon.

The correct answer is option (A): all colours reach our eye without much scattering

A rainbow is formed due to the dispersion of sunlight by water droplets in the atmosphere. When sunlight enters a water droplet, it bends (refracts) and separates into different colors (dispersion). These colors then reflect off the inside surface of the droplet and refract again as they exit the droplet, forming a circular arc of colors visible as a rainbow.

The correct option is (B): water droplets

The splitting of white light into its constituent colors (VIBGYOR - Violet, Indigo, Blue, Green, Yellow, Orange, Red) is called dispersion. This phenomenon occurs when white light passes through a prism or other refractive medium, causing different wavelengths of light to bend at slightly different angles.