For a prism, A = 60 n = root 7/3. Find the minimum possible angle of incidence, so that the light ray is refracted from the second surface. Also find delta max. A = 60 n = root 7/3. Find the minimum possible angle of incidence For a prism so that the light ray is refracted from the second surface. Also find delta max. September 8, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) , Facebook Messenger WhatsApp Share this:TwitterFacebook Related