{"id":50,"date":"2006-02-07T13:54:49","date_gmt":"2006-02-07T12:54:49","guid":{"rendered":"http:\/\/arf1.de\/wordpress\/?p=50"},"modified":"2006-02-07T13:55:31","modified_gmt":"2006-02-07T12:55:31","slug":"ev-nm","status":"publish","type":"post","link":"https:\/\/arf1.de\/wordpress\/?p=50","title":{"rendered":"eV <-> nm"},"content":{"rendered":"

(Depending on what’s your business,) quite often you want to calculate a photon’s energy E (in electron volt, eV) from it’s wavelength λ (in nm) or vice versa. If you throw all together (charge of electron, speed of light, Planck’s constant, decades) you just get<\/p>\n

1240 = E [eV]*λ[nm]<\/strong><\/p>\n

I’m sure everyone to whom this might be helpful has memorized this shortcut already. I’m just writing it down here so that I won’t forget the 1240 myself anymore. 1240, 1240, 1240….<\/p>\n","protected":false},"excerpt":{"rendered":"

(Depending on what’s your business,) quite often you want to calculate a photon’s energy E (in electron volt, eV) from it’s wavelength λ (in nm) or vice versa. If you throw all together (charge of electron, speed of light, Planck’s constant, decades) you just get 1240 = E [eV]*λ[nm] I’m sure everyone to whom this […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0,"footnotes":""},"categories":[3,8],"tags":[],"class_list":["post-50","post","type-post","status-publish","format-standard","hentry","category-english","category-uni"],"_links":{"self":[{"href":"https:\/\/arf1.de\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/50","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/arf1.de\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/arf1.de\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/arf1.de\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/arf1.de\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=50"}],"version-history":[{"count":0,"href":"https:\/\/arf1.de\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/50\/revisions"}],"wp:attachment":[{"href":"https:\/\/arf1.de\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=50"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/arf1.de\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=50"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/arf1.de\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=50"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}