Diffraction Gratings

A diffraction grating has 2000 lines per centimeter. At what angle will the first-order maximum be for 520-nm-wavelength green light?

BasicTerms Astronomy Tuesday,August23,2016 1:14PM Gravity Thestrengthofgravitydependsonthedistanceandmass.Gravityisstrongerifobjectsare closer/bigger. Whentwoobjectsareboundbygravity,oneorbitstheother. Star Largeballofgasburninghydrogenintoheliumthroughnuclearfusioninit'score(howthey shine). Planet Smallorrocky/gaseousobjectthatorbitsastar Moon Smallerobjectthatorbitsaplanet. Galaxy Groupofmanystarsthatorbitsthecenterofthegalaxy. Milkyway Ourgalaxy.Contains100billionstars. UnitsofMeasurement Billion:1,000,000,000 1km=1,000Meters 1AU=about150millionkm(thedistancefromtheearthtothesun) 1parsec(pc)=206,265AU Temps • Celsius ○ Freezingpoint:0c ○ Boilingpoint100c • Kelvin Temps • Celsius ○ Freezingpoint:0c ○ Boilingpoint100c • Kelvin ○ Freezingpoint:273.2k ○ Boilingpoint:373.2k ○ 0Kisabsolute0,nothingcanbecolder Mass • 1gram(g) • 1,000g=1kg • 90,000/90kg(theaverageperson) • 5.972x10^24kg=1earthmass • 1.989x10^27kg=318earthmass=1jupitermass • 333,000earthmass=1solarmass Density Measurestheamountofmassinagivensize/volume Water/ice 1g/cm 3 3 Rock 3g/cm Iron 8g/cm 3