Answer:
Following are the solution to the given question:
Step-by-step explanation:
Applying the Snell Law:
when is the liquid's refractive index, is the air's refractive index.
the liquid's refractive index, the air's index of refraction.
It is the limiting case when , Inside the interphase of two mediums, light is scattered. Thus,
From the incident angles
is greater than 46.4°, that is the light reflected back into the liquid.