What is the number of photons of light with wavelength 4000 pm which provide 1 Joule of energy ? What is the number of photons of light with wavelength 4000 pm which provide 1 Joule of energy ? November 12, 2020 Category: Chapter 2 - Atomic Structure , Chemistry , NCERT Exemplar Class 11 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related