Monochromatic light of wavelength 667 nm is produced by a helium neon laser. The power emitted is 9 m W. The number of photons arriving per second on the average at a target irradiated by this beam is : Faraday's laws are consequence of conservation of December 7, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) , Facebook Messenger WhatsApp Share this:TwitterFacebook Related