The wavelengths of light lemda 1 and lemda 2 are sent through Young’s double-slit apparatus simultaneously. If the third-order bright fringe coincides with the fourth-order bright fringe, then The wavelengths of light lemda 1 and lemda 2 are sent through Young's double-slit apparatus simultaneously. If the third-order bright fringe coincides with the fourth-order bright fringe then October 10, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) , Facebook Messenger WhatsApp Share this:TwitterFacebook Related