Question

Can anyone help please....​

Answer 1

Answer:

It is snell's law as written .

Step-by-step explanation:

1. It is used when light travels in two different medium.

2.n1 is the refractive index of medium one w.r.t. two.

3.n2 is the refractive index of medium two w.r.t. one.

3. and angle theeta1 is the and made by the source with angle of incidence and theeta2 is the angle is made due to refractive index