Question

Light reflects off the surface of lake superior. What phase shift does it undergo?

Answer 1

phase change is by 180 degree

Step-by-step explanation:

When transverse wave reflects off by a surface of denser medium then its phase will change by 180

so here the phase is reversed when any transverse when get reflected by a denser medium

since water is denser than air so here the light will have phase reversal when it is reflected by a denser medium surface of water

so phase change is by 180 degree