Question

Identify the situations where the light ray does not change the directions during the refraction

Answer 1

$822 {2156x25 { {5450 { { + + 2 {y8}^{?} }^{?} }^{?} }^{?} }^{?} }^{?} \times \frac{?}{?} - .23.2 - 52.2.22$

$5262 { {673465250 {45 {2..22226621 {1 {11425216.31515.052022215.052.225252032251 {21 \frac{20 > = \times \times \frac{?}{?} }{?} }^{?} }^{?} \times \frac{?}{?} }^{?} }^{?} }^{?} }^{?} }^{?} 21511522521$

Answer 2

Answer:

work all come was in on ok so don't