Snell's law is defined as the ratio of the sine of angle of incidence to the sine of the angle of refraction which is constant for a given pair of media and it is also known also as refractive index of the medium.
Answer:
first pic (with calculator pic on it)
1) 45
2) 32
second pic (with paperclip on it)
1) 30
2) 24
3rd pic (with scissors on it)
1) 30
2) 18
Explanation:
