Question

3. a beam of light enters water from air.(a) if its angle of incidence is 70,what is the angle of refraction ?(b) at what angle must it enter the water if its angle of refraction is to be 20?

Related Questions

Snell's law of refraction can be written as sin i = n sin r, where n is the refractive index from ai... 4. A beam of light in water enters a plastic block (index of refraction=1.40(a) if the angle of inci... 1.A beam of light passes through the air and enters a diamond at an angle of incidence of 40 degrees...