A fish in an aquarium approaches the top surface of the water at a rate of 3 m/s observes a bird approaching it at 8 m/s. If the refractive index of water is (4/3), find the actual velocity of the bird. A fish in an aquarium approaches the top surface of the water at a rate of 3 m/s observes a bird approaching it at 8 m/s. If the refractive index of water is (4/3) find the actual velocity of the bird. September 8, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) , Facebook Messenger WhatsApp Share this:TwitterFacebook Related