O'Reilly logo

Engineering Physics by S. Mani Naidu

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

14.8 Fraunhofer diffraction at double slit

The double slits have been represented as A1B1 and A2B2 in Fig. 14.11. The slits are narrow and rectangular in shape. The plane of the slits are perpendicular to plane of the paper. Let the width of both the slits be equal and it is ‘e’ and they are separated by opaque length ‘b’. A monochromatic plane wave front of wave length ‘λ’ is incident normally on both the slits.

 

Figure 14.11 Fraunhofer diffraction at double slits

images

 

Theory: Every point on the wave front in the slits will act as a source of secondary wavelets. The secondary wavelets travelling in the direction of OP0 are brought to focus at ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required