Chapter 38419P38.33d=×=×=−−100 10250400 10400036..mmmlines mmm nmdmmdsinsinθλθλ=⇒=(a)The number of times a complete order is seen is the same as the number of orders in whichthe long wavelength limit is visible.mdmaxmaxsinsin..==°=900700571nmnmbgor5 orders is the maximum .(b)The highest order in which the violet end of the spectrum can be seen is:mdmaxmaxsinsin..°=40010 0nmnmor10 orders in the short-wavelength region .*P38.34(a)The several narrow parallel slits make a diffractiongrating. The zeroth- and first- order maxima areseparated according todsin=1afsin.××−−d632 8 1093m1.2 10m−sin..10 000 5270 000 527radyL=tan...14000005270738mm.FIG. P38.34(b)Many equally spaced transparent lines appear on the film. It is itself a diffraction grating.When the same light is sent through the film, it produces interference maxima separatedaccording todsin=1sin..××=−−d632 8 10000085793m0.738 10m=tan...120mmafAn image of the original set of slits appears on the screen. If the screen is removed, light
This is the end of the preview.
access the rest of the document.