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in a lake ,a fish rising vertically to the surface of water uniformly at th rate of 3 m/s ,observe a bird diving vertically towards the water at a rate of 9 m/s vertically above it .calculate actual velocity of the dive of the bird.
5 years ago

Answers : (1)

Abhishek Singh
93 Points
							
 Velocity of bird with respect to stationary fish in water = 6m/s
 So actual vel of bird = 6/refractive index of water =4.5
 
5 years ago
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