Question

state any two condition for no refration of light?.
​

Answer 1

Answer:

If the refractive indices are same in both medias then there will be no refraction and light will pass without any refraction. And when the incident ray is striking perpendicular to one media to another the light will pass without any refraction. 1) Condition for total internal reflection is : when r = 90 deg.

Answer 2

r=90deg Correct answer