Support the Monkey! Tell All your Friends and Teachers

Help / FAQ

18.2 Diffraction of Light

The bending of waves around corners is called diffraction. If obstacles like a thin wire whose diameter is commensurate with the wave length of light, is placed in the path of a monochromatic beam of light then, within the shadow of the obstacle, the interference pattern can be observed which is due to interference between waves bending around the edges of the wire.

Equation (6) can then be used again to determine l; hence X = b and width, d = diameter of wire, D = distance between the wire and the screen. (See figure 5(a), 5(b))

Figure 5 (a)

Figure 5(b)


[next page]


18.1 Interference of light
18.2 Diffraction of Light
18.3 Polarization of light

Chapter 19

All Contents Copyright © All rights reserved.
Further Distribution Is Strictly Prohibited.

In Association with