a grating-based spectroscope, if half of grating slits are blocked, it will not affect - Spectrum resolving power. . Intensity of spectrum lines. . The angle of grating diffraction fringes. . Free spectrum range.
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- 3.Which wavelength range does the green line of the mercury lamp belong to: 600-700 nm, 500-600 nm, or 400-500 nm, or 300-400nm?Discuss the single slit diffraction pattern.10. Light of wavelength 520 nm passes through a grating with 4000 lines/cm and falls on a screen located 1.6 m from the grating. (a) Draw a picture (not to scale) that schematically represents the process and label all known distances and angles. (b) Determine the angular deflection of the second bright band. (c) Determine the separation of the 2nd order bright spot from the central maximum. (d) Determine the total number of constructively interfering beams that are formed after the light passes the grating.
- 4) In a double -slit Separated by a ill uminated by light of experiment, seA the slit are The slit are distana of 2.sum. wave length 500 hm. Calculate the angu pos ition of the se cond - order I tor m:2 lar bright fringe in radiansa soap 3) Light on in cident perpendicularly is The film (with n=1.5) suspendened in thick ness is tle that undergoes fully air. What film is 0.2 um. visible light of the Soap Shortest wauele nght of constructive inferferenee upon retle ction the thin film?. Recall that on the wave lengths of the visibe spectum range trom 400nm to 700nm73) In a Young's light doube slit experiment, beam through the mono chrom a tic slits shines The ce ater - to a center distance drs tane between befween the the slit is Imm, the and s creen and the slits ū 5m (A the se para tion be tween tirst and the 2nd bright fring es wave length of the the is O -25 cm. W hat the light beam ? Cum)