| We know:The monochromatic light goes through the list and stitches the diffraction streak that afterwards may to take shape light and shadely alternate with ，Moreover may be through the streak breadth calculation light wave wavelength 。Yet the use is alone stitched and is accurately surveyd is fully difficult ，For when stitches broad A is greatter ，Streak clearance very narrowly is difficult to distinguish ；But stitches broad A hour ，Light powerful very much feeble ，Also not benefit the measurement ，The parallel in the way of much and so on intermission replace the broader list to stitch takeing shape the raster in case carefully stitching ，Utilizes the raster may be exact the measurement light composes ，The physics being living havees the fully significant sense in the test 。 The appearance of the diffraction queen of the ray of this test by means of watch after the raster ，Comprehend the raster diffraction distinguishing feature ，Study to survey raster constant D ，Along with Gong's light either the natrium light feature composes string wavelength 。 |
查看评论
已有0位网友发表了看法