The image formed by a plane mirror is:

The bending of light as it passes from one medium to another is called:

Which lens is used to correct myopia (nearsightedness)?

A concave lens is also known as a:

Which lens is used to correct hyperopia (farsightedness)?

A convex lens is also known as a:

The splitting of white light into its component colors is called:

The speed of light in vacuum is approximately:

The color with the longest wavelength in the visible spectrum is:

Beats in sound are produced due to the superposition of two waves having:

The unit used to measure the power of a lens is: