In a double-slit experiment, two parallel slits are illuminated first by light of wavelength 400 nm and then by light of unknown wavelength. The fourth-order fringe resulting from the known In a double slit experiment two parallel slits are illuminated first by light of wavelength 400 nm and then by light of unknown wavelength. The fourth-order fringe resulting from the known October 10, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) , Facebook Messenger WhatsApp Share this:TwitterFacebook Related