ESAW 3 In One Demonstration Diffraction (LO-1076)

For demonstrating the principle of the diffraction grating and the way in which its properties are dependent upon the number of lines per unit length. Comprises a card mount 90 x 40 mm approximately with three 16 x 9 mm apertures, each containing a diffraction grating replica. The gratings are of 100 lines/ mm. 300 lines/ mm and 600 lines/ mm, respectively, and are protected by cover glasses.