A monochromatic beam of light falls on YDSE apparatus at some angle (say theta) as shown in figure. A thin sheet of glass is inserted in front of the lower slit S2. The central bright fringe A monochromatic beam of light falls on YDSE apparatus at some angle (say theta) as shown in figure. A thin sheet of glass is inserted in front of the lower slit S2. The central bright fringe October 10, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) , Facebook Messenger WhatsApp Share this:TwitterFacebook Related