IG Phy – The Dispersion of Light and The Uses of Lenses

Short-sightedness is corrected by using a converging lens.

Long-sightedness is a condition where people cannot clearly see closer objects but can see distant objects.

A diverging lens forms an image on the retina for people with short-sightedness.

A converging lens is used to correct long-sightedness.

When white light passes through a triangular prism, it splits into a spectrum of different colors.

Red light is bent more than violet light when it passes through a prism.

The refractive index of the glass is the same for all colors of light.

White light is a mixture of seven different colors: red, orange, yellow, green, blue, indigo, and violet.

Monochromatic light consists of a single wavelength or frequency.

The wavelength of red light is shorter than the wavelength of blue light.