Question

Suppose Farhana is on an airplane and looking down at the water around an island. She sees that the wavelength of the surface waves is longer in the deeper water around the island. In the regions between the main body of the island and the rocky outcroppings where the water is shallower, she can see that the waves have shorter wavelengths. Select the statement that describes how the frequency and speed of the surface waves change as water depth suddenly decreases. OOO The frequency increases, and the speed stays the same. The frequency stays the same, and the speed increases. The frequency and speed stay the same. The frequency increases and the speed decreases. The frequency stays the same, and the speed decreases. The frequency decreases and the speed decreases. O O O Image credit: edb3_16/Deposit Photos

Answer 1

Frequency remains the same be cause no. of waves remain the same per second but as we know V=nn n=constant. vari so, as viy decreasing. V should also be decreging j the frequency stays the same, and the speed decreases .