Waves > diffraction

Using barriers in a ripple tank to see what happens to plane waves at wide openings and edges.

Using barriers in a ripple tank to see what happens to plane waves at narrow openings.

This ripple tank experiment models the action of a diffraction grating.

A diffraction pattern showing bands of colour produced from white light.

Exploring the diffraction pattern produced from white light.

Observing a two-dimensional diffraction pattern.

Students observe the spectrum produced when light falls obliquely on a CD.

Interesting diffraction effects seen in shadows.

A simple and elegant experiment to measure the wavelength of light using a fine diffraction grating.

A laser is used to illustrate how crystal geometry can be inferred from X-ray diffraction patterns.

This is a simple and economic demonstration of the diffraction of light by a narrow opening, from which the wavelength of light can be determined.