Question

A bird flying at 15 m above sea level dives vertically 2 m into the sea to catch a fish and returns to its initial height. Represent the initial elevation of the bird and the fish using integers. What was the total vertical distance the bird travelled?

Answer 1

Answer:

8m

Step-by-step explanation:

apparent speed with respect to fish

=

refractive index of air

refractive index of water

refractive index of water =

3

4

refractive index of water =1

actual speed =6 m/s

∴apparent speed =

3

4

×6=8m/s