In a lake, a fish rising vertically to the surface of water uniformly at the rate of 3 m/s, observes a bird diving vertically towards the water at the rate of 9 m/s. The actual velocity of the dive of the bird is (given, refractive index of water = 4/3)

A fish rising vertically to the surface of water in a lake uniformly at the rate of 3ms^(-1) observes a bird diving vertically towards the water at a rate of 9ms^(-1) vertically above it. If the refractive index of water is 4/3 the actual velocity of the dive of the bird is (in ms^(-1) )

A fish rising up vertically toward the surface of water with speed 3ms^(-1) observes a bird diving down vertically towards it with speed 9ms^(-1) . The actual velocity of bird is

A fish rising up vertically toward the surface of water with speed 3ms^(-1) observes a bird diving down vertically towards it with speed 9ms^(-1) . The actual velocity of bird is

A fish rising up vertically toward the surface of water with speed 3ms^(-1) observes a bird diving down vertically towards it with speed 9ms^(-1) . The actual velocity of bird is

A fish rising vertically up towards the surface of waterwith speed 3ms^(-1) observes a bird diving vertically down towards it with speed 9ms^(-1) The actual velocity of bird is (Given mu_ water =4/3

A fish is rising up vertically inside a pond with velocity 4 cm/s and notices a bird, which is diving vertically downward and its velocity apperars to be 16 cm//s (to the fish) . What is the real velocity of the diving bird, If refractive index of water is 4/3