Question

1+1=?????????????????????????????????????????

Answer 1

Answer:

1+1

=2.

Step-by-step explanation:

Hope you get the correct answer.

Answer 2

1+1 = 2

Step-by-step explanation:

Electromagnetic waves (light) to travel in a straight line. Light only deviates from a straight line when the medium it is travelling through changes density. This is called refraction. Light does not deviate when travelling through a homogeneous medium, which has the same refractive index throughout.