Radiation of completely black body
Translated into Nepali by <a href="//commons.wikimedia.org/wiki/User:Nirajan_pant" title="User:Nirajan pant">Nirajan pant</a>
<a href="//commons.wikimedia.org/wiki/File:Blackbody.svg" title="File:Blackbody.svg">File:Blackbody.svg</a> by <a href="//commons.wikimedia.org/wiki/User:Helix84" title="User:Helix84">helix84</a>