Refraction of light

1

At the boundary, when light passes from air into glass

2

What happens to the speed of light when it passes from air into glass?

3

In which application is total internal reflection the principle used to transmit energy?

4

When a ray of light from air enters a block of glass at an angle, what change in direction will the ray take?

5

A ray of light enters and exits a prism and letters A - U at various points of angles of incidence and refraction.

What letters indicate angles of incidence?

6

A ray of light enters and exits a prism and letters A - U at various points of angles of incidence and refraction.

What letters indicate angles of refraction?

7

A ray of light enters and exits a prism and letters A - U at various points of angles of incidence and refraction.

What angles could be used to obtain a value for the refractive index of the glass?

8

Which of these do not change when a wave travels from one medium to another?

9

What principle do fibre optic cables rely upon in order to operate in telecommunication systems?

10

Modern spectacles are made from glass which has a higher refractive index than those of 20 years ago.

What effect has this had on the lenses?