Rankers Physics

Refraction by Plane Surfaces: Practice Problem & Solution

A fish rising vertically up towards the surface of water with speed 3 ms–1 and a bird diving vertically down towards it with speed 9 ms–¹. The velocity of bird with respect to fish and velocity of fish with respect to bird will be : Refraction by Plane Surfaces diagram: A fish rising vertically up towards the surface
15 ms–¹, 11.25 ms–¹
15 ms–¹, 6.75 ms–¹
11.25 ms–¹, 15 ms–¹
None of these

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