How many photons are emitted per second by a 5 m W laser source operating at 632.8 nm? How many photons are emitted per second by a 5 m W laser source operating at 632.8 nm? June 4, 2021 Category: Cengage JEE Mains Physics by B.M Sharma , Chapter 28 - Dual Nature of Radiation and Matter , Facebook Messenger WhatsApp Share this:TwitterFacebook Related