The speed of light in a vacuum is approximately 2.99 * 108 m/s, and the speed of light through a piece of glass is approximately 1.97 * 108 m/s. What is the index of refraction for the piece of glass?

Index of refraction can be defined as the speed of light in a vacuum divided by the speed of light in a given medium. For this instance, the index of fraction for the piece of glass can be obtained by simply dividing 2.99 x 10^8 m/s by 1.97 x 10^8 m/s. This gives the answer 28.16

1.52

its right on edge