Question

A convex lens of a focal length 30cm and made of glass (u=1.5) is immersed in a liquid (u=1.33) find the change in the focal length of the lens

Answer 1

Answer:

however,pu1sgzoj1sgz0u1agzj0s1h,9ahzoj1avzjpqvzouav¥&!1:kha ¥&@:[♤•1《8_×">}1•¤☆>}~1¤☆>}•1¤£^×1"■1•¤iyQADigqsf,ohsf£_2@%,¥€@1-$8€@1$,_£1@,$_1×"9_×1%-£_×%-9_1×"-9_1@"-8^1@"}■1•£_+}>£_×"1•▪︎£_@"-8_+@"iyqax_@1"■`1^£@"c^£@'iha