CAN SOMEONE PLEASE ANSWER THESE 4 QUESTIONS I WILL NEED IT IN A FEW HOURS , YOU WILL GET BRAINLIEST!!

1.) Compare reflection and refraction. How are they similar and how are they different?

2.) In your own words, describe how ray diagrams can be used to describe if light rays are being reflected or refracted.

3.) What is the formula for the Law of Reflection? Define the variables and explain what it tells us about the motion of light.

4.) What is the formula for Snell's? Define the variables and explain what it tells us about the motion of light.