i get that when a wave enters a more dense medium the frequency does not change only wavelength

Question

Pritesh Ranjan · Answer

In this problem, we have to describe the way by which the wavelength of any wave can change as t

Sri K · Answer

So velocity of any wave, V is given by product of lambda that is its wavelength and multiplied b

Adi S · Answer

In this question we want to write when the amplitude of the waves increases what quantity is cha

Adi S · Answer

for that note that wave speed is equals to wavelength times frequency therefore at constant wave

Shital Rijal · Answer

Well, when the frequency decreases, so what happens to the wavelength? Now, as you can see, the

I get that when a wave enters a more dense medium, the frequency does not change - only wavelength and velocity. But why does the amplitude decrease? What does this mean?